Definition of "fucoid" []

• Of or belonging to the order Fucales, which includes brown algae such as gulfweed and rockweed. (adjective)
• A member of the order Fucales. (noun)
• A fossilized cast or impression of such an organism. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "These are mainly casts of the giant fucoid alga Halymenites major, and shells of Inoceramus barabini."
• "A splintered fissure held delicate fucoid impressions in fine script full of meaning."
• "In the same strata with these inhabitants habitants of the early seas are found remains of fucoid or seaweed-like plants, the lowest of the vegetable tribe, which may have been the first of this kind of existences introduced into the world."