You’re using Safari to research a paper on climate change and you find the phrase “anthropogenic greenhouse gas concentrations.” What exactly does “anthropogenic” mean?

Here’s a fast way to get the definition of a word you’re not familiar with.

  1. Hover your mouse over the word and right-click.
  2. Choose Look Up in Dictionary from the menu that appears.
  3. Mac OS X immediately opens Dictionary and finds the meaning of “anthropogenic” for you.

Stored in the Applications folder, Dictionary works with all Mac OS X applications.

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