exaptation
/ˌekzæpˈteɪʃən/noun
mass noun
1- Biology the process by which features acquire functions for which they were not originally adapted or selected【生】全适应。
1.1
- count noun a character or feature which evolved in this way全适应性（或特征）。
词源
1980s: from EX-1 + aptation as in ADAPTATION.