sargasso

[ sahr-gas-oh ]
/ sɑrˈgæs oʊ /

noun, plural sar·gas·sos.

a gulfweed.

Origin of sargasso

1590–1600; < Portuguese, perhaps special use of sargaço rockrose < Latin salicastrum, equivalent to salic- (stem of salix) willow + -astrum, neuter of -aster -aster1
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British Dictionary definitions for sargasso

sargasso

sargasso weed

/ (sɑːˈɡæsəʊ) /

noun plural -sos

another name for gulfweed, sargassum

Word Origin for sargasso

C16: from Portuguese sargaço, of unknown origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012