presymbiosis

Noun. (biology) The stage in the development of an organism during which the necessary biochemical changes are made to allow a move from asymbiosis to symbiosis.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license.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.