Dictionary
ser•tu•lar•i•an
Pronunciation: (sûr"choo-lâr'ē-un), [key]—
n. Zool.
a type of hydroid that forms stiff, feathery colonies in which the cups holding the zooids are sessile.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.