a process in which
a feature acquires a function that was not acquired through natural selection.
a feature having a function for which it was not originally adapted or selected.
a morphological or physiological feature that predisposes an organism to adapt to a different environment
predisposition toward adaptation.
ex·ap·tive /ɛgˈzæptɪv, ɪg-, ɛkˈsæp-/ [eg-zap-tiv, ig-, ek-sap-] Show IPA , adjective