adaptational

From adaptation + -al.

adaptational (not comparable)

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

• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “adaptational”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.