ascidian
Concise Oxford English Dictionary © 2008 Oxford University Press:
ascidian /əˈsɪdɪən/
▶noun Zoology a sea squirt.
– origin C19: from mod. L. pl. Ascidia (genus name), from Gk askidion, dimin. of askos ‘wineskin’.
'ascidian' also found in these Oxford entries:

