any solitary or colonial tunicate of the class Ascidiacea, exhibiting in the larval stage the vertebrate characteristics of a notocord and hollow nerve cord.
adj. 形容词 adjective
belonging or pertaining to the class Ascidiacea.
更多ascidian例句
They pass through peculiar phases of development, the young ascidian appearing like a tadpole-body.
Castle77 observed and studied the phenomenon of self-sterility in an Ascidian, Ciona intestinalis, which is hermaphroditic.
Now this new organisation is not that of a branchial apparatus but represents a very small but complete ascidian (Fig. 13).
Appendicularia is a curious little Ascidian, differing from all the others in its possession of a tail.
He pointed out also that the "notochord" was confined to the tail of the ascidian larva.