| 释义 |
phoroˈzooid Zool.
[f. Gr. ϕορό-ς bearing + zooid.]
One of the ‘foster forms’ in the sexual generation of Ascidians of the order Thaliacea.
1888Herdman in Encycl. Brit. XXIII. 615/2 Foster forms (phorozooids), which..do not become sexually mature, but..are set free as cask-shaped bodies with eight muscle bands and a ventral outgrowth..formed of the stalk by which the body was formerly united to the nurse. |