| 释义 |
cho·a·na
\ˈkōənə\ noun
(plural choa·nae \-ˌnē\)
Etymology: New Latin, from Greek choanē funnel
1. anatomy : a funnellike opening; especially : either of the posterior nares
2. : a collarlike contractile protoplasmic cup or rim surrounding the flagellum of certain flagellates and the endoderm cells of sponges |