hornwrack
(ˈhɔːnræk)
[f. horn n. + wrack, seaweed cast ashore.]
A polyzoon of the genus Flustra, resembling a seaweed in appearance, and of somewhat horny consistency.
| 1819 Pantologia, Flustra, horn-wrack. 1888 Rolleston & Jackson Anim. Life 234 Broad-leafed Hornwrack (Flustra foliacea). |