different between adaptional vs adaptational

English

adaptional (comparative more adaptional, superlative most adaptional)

Relating or pertaining to adaptation, or the action of adapting.
(biology) Applied to the process by which an organism is fitted or adapted to its environment

adaptation +? -al

adaptational (not comparable)

Relating or pertaining to adaptation, or the adjustment of one thing to another; adaptive
(biology) Applied to physiological or functional modifications of parts or organs, as distinguished from morphological or structural changes.

adaptational in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

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