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Any of various brown algae of the genus Fucus, which includes many of the rockweeds.
[Latin fūcus, seaweed, orchil, from Greek phūkos.]
n, pl -ci (-saɪ) or -cuses
(Plants) any seaweed of the genus Fucus, common in the intertidal regions of many shores and typically having greenish-brown slimy fronds. See also wrack22
[C16: from Latin: rock lichen, from Greek phukos seaweed, dye, of Semitic origin]
n., pl. -ci (-sī), -cus•es.
any olive-brown seaweed of the genus Fucus, having branching fronds and often air bladders.
[1710–20; < New Latin; Latin fūcus seaweed, dye, orchil < Greek phŷkos]