- actinopterygian
[actinopterygian 词源字典]
- "Of or relating to the group Actinopterygii of bony fishes characterized by membranous fins supported by slender rays or spines", Late 19th cent.; earliest use found in Edward Cope (1840–1897). From actino- + -pterygian, after scientific Latin Actinopterygii.[actinopterygian etymology, actinopterygian origin, 英语词源]