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No. Definition Note
1. A process of fitting, or modifying, a thing to other uses, and so altering its form or original purpose. S:1911 Encyclopædia Britannica/Adaptation
2. A positive characteristic of an organism that has been favored by natural selection and increases the fitness of its possessor. W:Adaptation
3. An anatomical structure, physiological process or behavioral trait that has evolved. W:Adaptation (disambiguation). This probably does not fit. Not every trait evolved is at the same time an adaption, AFAIK. --Daniel Polansky 17:14, 12 June 2008 (UTC)
4. The act or process of adapting, or fitting; or the state of being adapted or fitted; fitness. adaptation in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
5. Adjustment to extant conditions: as, adjustment of a sense organ to the intensity or quality of stimulation; modification of some thing or its parts that makes it more fit for existence under the conditions of its current environment Current second definition.

I am unsatisfied with the current definitions, so I have created a table for discussion, to be possibly expanded. --Daniel Polansky 17:07, 12 June 2008 (UTC)