[ sahr-gas-uh m ]
/ sɑrˈgæs əm /


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

Origin of sargassum

From New Latin, dating back to 1900–05; see origin at sargasso Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sargassum

British Dictionary definitions for sargassum


sargasso (sɑːˈɡæsəʊ)

/ (sɑːˈɡæsəm) /


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