FUCOIDS
Noun
fucoids
plural of fucoid
Source: Wiktionary
FUCOID
Fu"coid, a. Etym: [Fucus + -oid.] (Bot.)
(a) 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.
(b) In a vague sense, resembling seaweeds, or of the nature of
seaweeds.
Fu"coid, n. (Bot.)
Definition: A plant, whether recent or fossil, which resembles a seaweed.
See Fucoid, a.
Source: Webster’s Unabridged Dictionary 1913 Edition