"Fucoid" is an adjective that refers to a plant or algae resembling seaweed, with brown or olive-green branches. If you're looking for synonyms for "fucoid," various words that may come in handy are "kelp-like," "seaweed-like," "algal," "marine," and "brackish." These words all relate to the appearance or habitat of marine plant life that resembles seaweed. Additionally, "oceanic," "aquatic," "submerged," "underwater," and "subaqueous" are some other useful synonyms that describe the environment where fucoid plants or algae grow. Whether you're a marine biologist or simply want to expand your vocabulary, familiarizing yourself with synonyms for "fucoid" will enhance your language skills.