Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of rockweed is as below...

Melanosperm :: Melanosperm (n.) An alga of any kind that produces blackish spores, or seed dust. The melanosperms include the rockweeds and all kinds of kelp..

Oogonium :: Oogonium (n.) A special cell in certain cryptogamous plants containing oospheres, as in the rockweeds (Fucus), and the orders Vaucherieae and Peronosporeae..

Fucus :: Fucus (n.) A genus of tough, leathery seaweeds, usually of a dull brownish green color; rockweed..

Cyst :: Cyst (n.) One of the bladders or air vessels of certain algae, as of the great kelp of the Pacific, and common rockweeds (Fuci) of our shores..

Fucoid :: Fucoid (a.) Properly, belonging to an order of alga: (Fucoideae) which are blackish in color, and produce oospores which are not fertilized until they have escaped from the conceptacle. The common rockweeds and the gulfweed (Sargassum) are fucoid in character..

Rockweed :: Rockweed (n.) Any coarse seaweed growing on sea-washed rocks, especially Fucus..

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