ascidian

English Thesaurus

1. minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves (noun.animal)

hypernym	:	tunicate, urochord, urochordate,
definition	:	primitive marine animal having a saclike unsegmented body and a urochord that is conspicuous in the larva (noun.animal)

hyponym	:	sea squirt,
definition	:	ascidian that can contract its body and eject streams of water (noun.animal)

member meronym	:	ascidiaceae, class ascidiaceae,
definition	:	sometimes classified as an order: sea squirts (noun.animal)