sargassum

[ sahr-gas-uhm ]
/ sɑrˈgæs əm /

noun

any seaweed of the genus Sargassum, widely distributed in the warmer waters of the globe, as S. bacciferum, the common gulfweed.

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Origin of sargassum

From New Latin, dating back to 1900–05; see origin at sargasso
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for sargassum

sargassum

sargasso (sɑːˈɡæsəʊ)

/ (sɑːˈɡæsəm) /

noun

any floating brown seaweed of the genus Sargassum, such as gulfweed, of warm seas, having ribbon-like fronds containing air sacs

Word Origin for sargassum

C18: from New Latin; see sargasso
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