synapomorphy
/sɪˈnæpəˌmɔːfɪ/noun
(pl. -ies)［mass noun］
1- Biology the possession by two organisms of a characteristic (not necessarily the same in each) that is derived from one characteristic in an organism from which they both evolved【生】共同衍征, 近裔共生, 共有新征。
1.1
- count noun a characteristic derived in this way共同衍征。
词源