diff --git a/externs/readme.md b/externs/readme.md
index 992c354fe3..3c1880d689 100644
--- a/externs/readme.md
+++ b/externs/readme.md
@@ -28,7 +28,7 @@ In the source file (`src/ol/MapBrowserEvent.js`), the class needs to implement t
  * @constructor
  * @implements {oli.MapBrowserEvent}
  */
-ol.MapBrowserEvent = function(type, map, browserEvent, opt_frameState) {
+ol.MapBrowserEvent = function(type, map, originalEvent, opt_frameState) {
 
   // ...
 
diff --git a/src/ol/control/mousepositioncontrol.js b/src/ol/control/mousepositioncontrol.js
index 0b01944e34..7a558a042a 100644
--- a/src/ol/control/mousepositioncontrol.js
+++ b/src/ol/control/mousepositioncontrol.js
@@ -154,21 +154,21 @@ ol.control.MousePosition.prototype.getProjection = function() {
 
 
 /**
- * @param {Event} browserEvent Browser event.
+ * @param {Event} event Browser event.
  * @protected
  */
-ol.control.MousePosition.prototype.handleMouseMove = function(browserEvent) {
+ol.control.MousePosition.prototype.handleMouseMove = function(event) {
   var map = this.getMap();
-  this.lastMouseMovePixel_ = map.getEventPixel(browserEvent);
+  this.lastMouseMovePixel_ = map.getEventPixel(event);
   this.updateHTML_(this.lastMouseMovePixel_);
 };
 
 
 /**
- * @param {Event} browserEvent Browser event.
+ * @param {Event} event Browser event.
  * @protected
  */
-ol.control.MousePosition.prototype.handleMouseOut = function(browserEvent) {
+ol.control.MousePosition.prototype.handleMouseOut = function(event) {
   this.updateHTML_(null);
   this.lastMouseMovePixel_ = null;
 };
diff --git a/src/ol/control/zoomslidercontrol.js b/src/ol/control/zoomslidercontrol.js
index 890f96aa5d..67329d0781 100644
--- a/src/ol/control/zoomslidercontrol.js
+++ b/src/ol/control/zoomslidercontrol.js
@@ -214,10 +214,10 @@ ol.control.ZoomSlider.render = function(mapEvent) {
 
 
 /**
- * @param {Event} browserEvent The browser event to handle.
+ * @param {Event} event The browser event to handle.
  * @private
  */
-ol.control.ZoomSlider.prototype.handleContainerClick_ = function(browserEvent) {
+ol.control.ZoomSlider.prototype.handleContainerClick_ = function(event) {
   var map = this.getMap();
   var view = map.getView();
   var currentResolution = view.getResolution();
@@ -229,8 +229,8 @@ ol.control.ZoomSlider.prototype.handleContainerClick_ = function(browserEvent) {
     easing: ol.easing.easeOut
   }));
   var relativePosition = this.getRelativePosition_(
-      browserEvent.offsetX - this.thumbSize_[0] / 2,
-      browserEvent.offsetY - this.thumbSize_[1] / 2);
+      event.offsetX - this.thumbSize_[0] / 2,
+      event.offsetY - this.thumbSize_[1] / 2);
   var resolution = this.getResolutionForPosition_(relativePosition);
   view.setResolution(view.constrainResolution(resolution));
 };
@@ -243,7 +243,7 @@ ol.control.ZoomSlider.prototype.handleContainerClick_ = function(browserEvent) {
  */
 ol.control.ZoomSlider.prototype.handleDraggerStart_ = function(event) {
   if (!this.dragging_ &&
-      event.browserEvent.target === this.element.firstElementChild) {
+      event.originalEvent.target === this.element.firstElementChild) {
     this.getMap().getView().setHint(ol.ViewHint.INTERACTING, 1);
     this.previousX_ = event.clientX;
     this.previousY_ = event.clientY;
diff --git a/src/ol/deviceorientation.js b/src/ol/deviceorientation.js
index b4f0205395..6726ac59d8 100644
--- a/src/ol/deviceorientation.js
+++ b/src/ol/deviceorientation.js
@@ -108,11 +108,10 @@ ol.DeviceOrientation.prototype.disposeInternal = function() {
 
 /**
  * @private
- * @param {Event} browserEvent Event.
+ * @param {Event} originalEvent Event.
  */
-ol.DeviceOrientation.prototype.orientationChange_ = function(browserEvent) {
-  var event = /** @type {DeviceOrientationEvent} */
-      (browserEvent);
+ol.DeviceOrientation.prototype.orientationChange_ = function(originalEvent) {
+  var event = /** @type {DeviceOrientationEvent} */ (originalEvent);
   if (event.alpha !== null) {
     var alpha = ol.math.toRadians(event.alpha);
     this.set(ol.DeviceOrientationProperty.ALPHA, alpha);
diff --git a/src/ol/events/condition.js b/src/ol/events/condition.js
index c5c63f530a..d6fba5543d 100644
--- a/src/ol/events/condition.js
+++ b/src/ol/events/condition.js
@@ -26,11 +26,11 @@ ol.events.ConditionType;
  * @api stable
  */
 ol.events.condition.altKeyOnly = function(mapBrowserEvent) {
-  var browserEvent = mapBrowserEvent.originalEvent;
+  var originalEvent = mapBrowserEvent.originalEvent;
   return (
-      browserEvent.altKey &&
-      !(browserEvent.metaKey || browserEvent.ctrlKey) &&
-      !browserEvent.shiftKey);
+      originalEvent.altKey &&
+      !(originalEvent.metaKey || originalEvent.ctrlKey) &&
+      !originalEvent.shiftKey);
 };
 
 
@@ -43,11 +43,11 @@ ol.events.condition.altKeyOnly = function(mapBrowserEvent) {
  * @api stable
  */
 ol.events.condition.altShiftKeysOnly = function(mapBrowserEvent) {
-  var browserEvent = mapBrowserEvent.originalEvent;
+  var originalEvent = mapBrowserEvent.originalEvent;
   return (
-      browserEvent.altKey &&
-      !(browserEvent.metaKey || browserEvent.ctrlKey) &&
-      browserEvent.shiftKey);
+      originalEvent.altKey &&
+      !(originalEvent.metaKey || originalEvent.ctrlKey) &&
+      originalEvent.shiftKey);
 };
 
 
@@ -84,9 +84,9 @@ ol.events.condition.click = function(mapBrowserEvent) {
  * @return {boolean} The result.
  */
 ol.events.condition.mouseActionButton = function(mapBrowserEvent) {
-  var browserEvent = mapBrowserEvent.originalEvent;
-  return browserEvent.button == 0 &&
-      !(goog.userAgent.WEBKIT && ol.has.MAC && browserEvent.ctrlKey);
+  var originalEvent = mapBrowserEvent.originalEvent;
+  return originalEvent.button == 0 &&
+      !(goog.userAgent.WEBKIT && ol.has.MAC && originalEvent.ctrlKey);
 };
 
 
@@ -147,11 +147,11 @@ ol.events.condition.doubleClick = function(mapBrowserEvent) {
  * @api stable
  */
 ol.events.condition.noModifierKeys = function(mapBrowserEvent) {
-  var browserEvent = mapBrowserEvent.originalEvent;
+  var originalEvent = mapBrowserEvent.originalEvent;
   return (
-      !browserEvent.altKey &&
-      !(browserEvent.metaKey || browserEvent.ctrlKey) &&
-      !browserEvent.shiftKey);
+      !originalEvent.altKey &&
+      !(originalEvent.metaKey || originalEvent.ctrlKey) &&
+      !originalEvent.shiftKey);
 };
 
 
@@ -165,11 +165,11 @@ ol.events.condition.noModifierKeys = function(mapBrowserEvent) {
  * @api stable
  */
 ol.events.condition.platformModifierKeyOnly = function(mapBrowserEvent) {
-  var browserEvent = mapBrowserEvent.originalEvent;
+  var originalEvent = mapBrowserEvent.originalEvent;
   return (
-      !browserEvent.altKey &&
-      (ol.has.MAC ? browserEvent.metaKey : browserEvent.ctrlKey) &&
-      !browserEvent.shiftKey);
+      !originalEvent.altKey &&
+      (ol.has.MAC ? originalEvent.metaKey : originalEvent.ctrlKey) &&
+      !originalEvent.shiftKey);
 };
 
 
@@ -182,11 +182,11 @@ ol.events.condition.platformModifierKeyOnly = function(mapBrowserEvent) {
  * @api stable
  */
 ol.events.condition.shiftKeyOnly = function(mapBrowserEvent) {
-  var browserEvent = mapBrowserEvent.originalEvent;
+  var originalEvent = mapBrowserEvent.originalEvent;
   return (
-      !browserEvent.altKey &&
-      !(browserEvent.metaKey || browserEvent.ctrlKey) &&
-      browserEvent.shiftKey);
+      !originalEvent.altKey &&
+      !(originalEvent.metaKey || originalEvent.ctrlKey) &&
+      originalEvent.shiftKey);
 };
 
 
diff --git a/src/ol/mapbrowserevent.js b/src/ol/mapbrowserevent.js
index b95daf36f0..95bbadaed0 100644
--- a/src/ol/mapbrowserevent.js
+++ b/src/ol/mapbrowserevent.js
@@ -106,7 +106,7 @@ ol.MapBrowserEvent.prototype.stopPropagation = function() {
 ol.MapBrowserPointerEvent = function(type, map, pointerEvent, opt_dragging,
     opt_frameState) {
 
-  goog.base(this, type, map, pointerEvent.browserEvent, opt_dragging,
+  goog.base(this, type, map, pointerEvent.originalEvent, opt_dragging,
       opt_frameState);
 
   /**
diff --git a/src/ol/pointer/pointerevent.js b/src/ol/pointer/pointerevent.js
index 438c79933b..b0608c167b 100644
--- a/src/ol/pointer/pointerevent.js
+++ b/src/ol/pointer/pointerevent.js
@@ -44,18 +44,18 @@ goog.require('ol.events.Event');
  * @constructor
  * @extends {ol.events.Event}
  * @param {string} type The type of the event to create.
- * @param {Event} browserEvent The event.
+ * @param {Event} originalEvent The event.
  * @param {Object.<string, ?>=} opt_eventDict An optional dictionary of
  *    initial event properties.
  */
-ol.pointer.PointerEvent = function(type, browserEvent, opt_eventDict) {
+ol.pointer.PointerEvent = function(type, originalEvent, opt_eventDict) {
   goog.base(this, type);
 
   /**
    * @const
    * @type {Event}
    */
-  this.browserEvent = browserEvent;
+  this.originalEvent = originalEvent;
 
   var eventDict = opt_eventDict ? opt_eventDict : {};
 
@@ -186,9 +186,9 @@ ol.pointer.PointerEvent = function(type, browserEvent, opt_eventDict) {
   this.isPrimary = 'isPrimary' in eventDict ? eventDict['isPrimary'] : false;
 
   // keep the semantics of preventDefault
-  if (browserEvent.preventDefault) {
+  if (originalEvent.preventDefault) {
     this.preventDefault = function() {
-      browserEvent.preventDefault();
+      originalEvent.preventDefault();
     };
   }
 };
diff --git a/src/ol/pointer/pointereventhandler.js b/src/ol/pointer/pointereventhandler.js
index aab760f836..e49be24df5 100644
--- a/src/ol/pointer/pointereventhandler.js
+++ b/src/ol/pointer/pointereventhandler.js
@@ -196,20 +196,17 @@ ol.pointer.PointerEventHandler.prototype.removeEvents_ = function(events) {
 /**
  * Returns a snapshot of inEvent, with writable properties.
  *
- * @param {Event} browserEvent Browser event.
+ * @param {Event} event Browser event.
  * @param {Event|Touch} inEvent An event that contains
  *    properties to copy.
  * @return {Object} An object containing shallow copies of
  *    `inEvent`'s properties.
  */
-ol.pointer.PointerEventHandler.prototype.cloneEvent = function(browserEvent, inEvent) {
+ol.pointer.PointerEventHandler.prototype.cloneEvent = function(event, inEvent) {
   var eventCopy = {}, p;
   for (var i = 0, ii = ol.pointer.CLONE_PROPS.length; i < ii; i++) {
     p = ol.pointer.CLONE_PROPS[i][0];
-    eventCopy[p] =
-        browserEvent[p] ||
-        inEvent[p] ||
-        ol.pointer.CLONE_PROPS[i][1];
+    eventCopy[p] = event[p] || inEvent[p] || ol.pointer.CLONE_PROPS[i][1];
   }
 
   return eventCopy;
@@ -221,122 +218,110 @@ ol.pointer.PointerEventHandler.prototype.cloneEvent = function(browserEvent, inE
 
 /**
  * Triggers a 'pointerdown' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.down = function(pointerEventData, browserEvent) {
-  this.fireEvent(ol.pointer.EventType.POINTERDOWN,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.down = function(data, event) {
+  this.fireEvent(ol.pointer.EventType.POINTERDOWN, data, event);
 };
 
 
 /**
  * Triggers a 'pointermove' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.move = function(pointerEventData, browserEvent) {
-  this.fireEvent(ol.pointer.EventType.POINTERMOVE,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.move = function(data, event) {
+  this.fireEvent(ol.pointer.EventType.POINTERMOVE, data, event);
 };
 
 
 /**
  * Triggers a 'pointerup' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.up = function(pointerEventData, browserEvent) {
-  this.fireEvent(ol.pointer.EventType.POINTERUP,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.up = function(data, event) {
+  this.fireEvent(ol.pointer.EventType.POINTERUP, data, event);
 };
 
 
 /**
  * Triggers a 'pointerenter' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.enter = function(pointerEventData, browserEvent) {
-  pointerEventData.bubbles = false;
-  this.fireEvent(ol.pointer.EventType.POINTERENTER,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.enter = function(data, event) {
+  data.bubbles = false;
+  this.fireEvent(ol.pointer.EventType.POINTERENTER, data, event);
 };
 
 
 /**
  * Triggers a 'pointerleave' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.leave = function(pointerEventData, browserEvent) {
-  pointerEventData.bubbles = false;
-  this.fireEvent(ol.pointer.EventType.POINTERLEAVE,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.leave = function(data, event) {
+  data.bubbles = false;
+  this.fireEvent(ol.pointer.EventType.POINTERLEAVE, data, event);
 };
 
 
 /**
  * Triggers a 'pointerover' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.over = function(pointerEventData, browserEvent) {
-  pointerEventData.bubbles = true;
-  this.fireEvent(ol.pointer.EventType.POINTEROVER,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.over = function(data, event) {
+  data.bubbles = true;
+  this.fireEvent(ol.pointer.EventType.POINTEROVER, data, event);
 };
 
 
 /**
  * Triggers a 'pointerout' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.out = function(pointerEventData, browserEvent) {
-  pointerEventData.bubbles = true;
-  this.fireEvent(ol.pointer.EventType.POINTEROUT,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.out = function(data, event) {
+  data.bubbles = true;
+  this.fireEvent(ol.pointer.EventType.POINTEROUT, data, event);
 };
 
 
 /**
  * Triggers a 'pointercancel' event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.cancel = function(pointerEventData, browserEvent) {
-  this.fireEvent(ol.pointer.EventType.POINTERCANCEL,
-      pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.cancel = function(data, event) {
+  this.fireEvent(ol.pointer.EventType.POINTERCANCEL, data, event);
 };
 
 
 /**
  * Triggers a combination of 'pointerout' and 'pointerleave' events.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.leaveOut = function(pointerEventData, browserEvent) {
-  this.out(pointerEventData, browserEvent);
-  if (!this.contains_(
-      pointerEventData.target,
-      pointerEventData.relatedTarget)) {
-    this.leave(pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.leaveOut = function(data, event) {
+  this.out(data, event);
+  if (!this.contains_(data.target, data.relatedTarget)) {
+    this.leave(data, event);
   }
 };
 
 
 /**
  * Triggers a combination of 'pointerover' and 'pointerevents' events.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.enterOver = function(pointerEventData, browserEvent) {
-  this.over(pointerEventData, browserEvent);
-  if (!this.contains_(
-      pointerEventData.target,
-      pointerEventData.relatedTarget)) {
-    this.enter(pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.enterOver = function(data, event) {
+  this.over(data, event);
+  if (!this.contains_(data.target, data.relatedTarget)) {
+    this.enter(data, event);
   }
 };
 
@@ -359,26 +344,26 @@ ol.pointer.PointerEventHandler.prototype.contains_ = function(container, contain
 // EVENT CREATION AND TRACKING
 /**
  * Creates a new Event of type `inType`, based on the information in
- * `pointerEventData`.
+ * `data`.
  *
  * @param {string} inType A string representing the type of event to create.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  * @return {ol.pointer.PointerEvent} A PointerEvent of type `inType`.
  */
-ol.pointer.PointerEventHandler.prototype.makeEvent = function(inType, pointerEventData, browserEvent) {
-  return new ol.pointer.PointerEvent(inType, browserEvent, pointerEventData);
+ol.pointer.PointerEventHandler.prototype.makeEvent = function(inType, data, event) {
+  return new ol.pointer.PointerEvent(inType, event, data);
 };
 
 
 /**
  * Make and dispatch an event in one call.
  * @param {string} inType A string representing the type of event.
- * @param {Object} pointerEventData Pointer event data.
- * @param {Event} browserEvent The event.
+ * @param {Object} data Pointer event data.
+ * @param {Event} event The event.
  */
-ol.pointer.PointerEventHandler.prototype.fireEvent = function(inType, pointerEventData, browserEvent) {
-  var e = this.makeEvent(inType, pointerEventData, browserEvent);
+ol.pointer.PointerEventHandler.prototype.fireEvent = function(inType, data, event) {
+  var e = this.makeEvent(inType, data, event);
   this.dispatchEvent(e);
 };
 
@@ -386,11 +371,10 @@ ol.pointer.PointerEventHandler.prototype.fireEvent = function(inType, pointerEve
 /**
  * Creates a pointer event from a native pointer event
  * and dispatches this event.
- * @param {Event} nativeEvent A platform event with a target.
+ * @param {Event} event A platform event with a target.
  */
-ol.pointer.PointerEventHandler.prototype.fireNativeEvent = function(nativeEvent) {
-  var e = this.makeEvent(nativeEvent.type, nativeEvent,
-      nativeEvent);
+ol.pointer.PointerEventHandler.prototype.fireNativeEvent = function(event) {
+  var e = this.makeEvent(event.type, event, event);
   this.dispatchEvent(e);
 };
 
@@ -399,15 +383,12 @@ ol.pointer.PointerEventHandler.prototype.fireNativeEvent = function(nativeEvent)
  * Wrap a native mouse event into a pointer event.
  * This proxy method is required for the legacy IE support.
  * @param {string} eventType The pointer event type.
- * @param {Event} browserEvent The event.
+ * @param {Event} event The event.
  * @return {ol.pointer.PointerEvent} The wrapped event.
  */
-ol.pointer.PointerEventHandler.prototype.wrapMouseEvent = function(eventType, browserEvent) {
+ol.pointer.PointerEventHandler.prototype.wrapMouseEvent = function(eventType, event) {
   var pointerEvent = this.makeEvent(
-      eventType,
-      ol.pointer.MouseSource.prepareEvent(browserEvent, this),
-      browserEvent
-      );
+      eventType, ol.pointer.MouseSource.prepareEvent(event, this), event);
   return pointerEvent;
 };