You searched for: “ascidiozooid
One of the individual members of a compound ascidian which are members of the Ascidiacea: sea-squirts or sedentary tunicates, either solitary or in colonies, having a degenerate nervous system, an atrium opening dorsally near the mouth and numerous gill-slits forming a basket-work. The whole organism is enclosed in a test or outer skin made of material resembling cellulose.