macroevolution

Noun.  large-scale patterns or processes in the history of life, including the origins of novel organismal designs, evolutionary trends, adaptive radiations and extinctions.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.