| 释义 |
plan·u·la
\ˈplanyələ\ noun
(plural planu·lae \-yəˌlē\)
Etymology: New Latin, feminine diminutive of Latin planus flat — more at floor
: the very young free-swimming larva of a coelenterate that usually has a flattened oval or oblong form and consists of an outer layer of ciliated ectoderm cells and an internal mass of endoderm cells
• plan·u·lar \-yələ(r)\ adjective |