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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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈfyu kəs)

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fucus - any member of the genus Fucusfucus - any member of the genus Fucus  
rockweed - coarse brown seaweed growing on rocks exposed at low tide
genus Fucus - type genus of the family Fucaceae: cartilaginous brown algae
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
Here is a preserve of sea-cucumber, which a Malay would declare to be unrivalled in the world; here is a cream, of which the milk has been furnished by the cetacea, and the sugar by the great fucus of the North Sea; and, lastly, permit me to offer you some preserve of anemones, which is equal to that of the most delicious fruits."
In Chiloe, where the kelp does not thrive very well, the numerous shells, corallines, and crustacea are absent; but there yet remain a few of the Flustraceae, and some compound Ascidiae; the latter, however, are of different species from those in Tierra del Fuego: we see here the fucus possessing a wider range than the animals which use it as an abode.
(ABM, o, Ecol, Pelvetia, Fucus, Ascophyllum, Phaeophyceae, Corol).
Gjoa Haven's habitats differed significantly along a depth gradient, with sand and gravel substrates covered by Fucus sp.
Fucoidan--nontoxic sulfated polysaccharide was isolated from brown algae Fucus evanescens in Okhotskoe Sea.
Gwymon arall ddefnyddid oedd y gwymon codog mn (Fucus vesiculosus; bladder wrack).
En 1804, cuando su expedicion partio de Veracruz rumbo a La Habana a bordo de la fragata espanola La O, recolectaron el alga Fucus vesiculosus Linnaeus a la deriva en el Golfo de Mexico (Bonpland et al., 1825); los mismos Humboldt y Bonpland senalaron en la etiqueta del ejemplar de herbario (Herb.
To further differentiate this product line, Diana has added the following trademarks to ingredients in the line: HealSea fucus extract for cardiovascular health; ChondrActiv joint health product; Brassicare broccoli extract standardized to glucoraphane; Appl'ln apple extract with 80% polyphenols and 5% phloridzin for weight management applications; and CranPure cranberry extract with 30% PACs.
For example, methyl jasmonate induced an increased biosynthesis of phlorotannins--often considered to be defense compounds--in the bladder wrack Fucus vesiculosus (Arnold et al., 2001) and transient resistance to A.