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DoubleClick and Define Using Apple Dictionary

A fantastic prototype script for Mac dictionary lookups.

var selection;
  selection = window.getSelection();
else if(document.selection)
  selection = document.selection.createRange();

document.observe('dblclick', function() {
  if(navigator.userAgent.include('Macintosh')) {
      location.href = 'dict://' + selection;

A quick (and probably dirty) Prototype-based hack allowing Mac users to get the definition of any word by double clicking it.

[Via AlternateIdea – Home.]