Fucoid

Fu´coid

a.	1.	(Bot.) Properly, belonging to an order of alga: (Fucoideæ) which are blackish in color, and produce oöspores which are not fertilized until they have escaped from the conceptacle. The common rockweeds and the gulfweed (Sargassum) are fucoid in character.
n.	1.	(Bot.) A plant, whether recent or fossil, which resembles a seaweed. See Fucoid, a.

Noun	1.	fucoid - a fossilized cast or impression of algae of the order Fucales
	2.	fucoid - any of various algae of the family Fucaceae Synonyms: fucoid algae