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Ever since Lion I've been using Better Touch Tool in order to have the three finger tap gesture trigger a middle click. Now, in Mountain Lion, Apple has changed the in-line dictionary definition gesture from three finger double tap to three finger tap. I am finding that sometimes I get middle click and sometimes I get a dictionary definition. How can I disable Apple's dictionary definition gesture?

Edit: sometimes I am getting both a middle click and a dictionary definition.

share|improve this question… – user3463 Jul 28 '12 at 3:45
Would you mind posting that as an answer so that I may accept it? – KPthunder Jul 28 '12 at 3:52
Disabling "Look up" feature disables Three-finger-tap gesture in Better Touch Tool - have you found any workaround? – Pavel Alexeev Oct 2 '12 at 10:03
Yeah, I just kept three finger tap as lookup and made three finger click to be middle click. It takes some getting used to but its bearable. – KPthunder Oct 3 '12 at 13:01
up vote 25 down vote accepted

A similar question was posted on AskDifferent.

From the accepted answer by Daniel Lawson:

In System Preferences under Trackpad then Point & Click, uncheck Look up.

enter image description here

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