- urochord
[urochord 词源字典]
- "A notochord that is confined to or present in the tail region, especially as characteristic of certain tunicates (urochordates). Now rare", Late 19th cent.; earliest use found in Thomas Huxley (1825–1895), biologist and science educationist. From uro- + chord.[urochord etymology, urochord origin, 英语词源]