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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sargasso

Contemporary Examples of sargasso

  • The Dow Jones Industrial Average is hovering near 14,000, and global bond markets are as calm as the Sargasso Sea.

    The Daily Beast logo
    Why Do Banks Get Away With Murder?

    Daniel Gross

    February 7, 2013

  • She may drift into the Sargasso Sea of daytime television, where she can chat up B-list celebrities.

    The Daily Beast logo
    Arrivederci, Sarah!

    Joe McGinniss

    October 6, 2011

Historical Examples of sargasso

British Dictionary definitions for sargasso


sargasso weed

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

Word Origin and History for sargasso

"seaweed," 1590s, from Portuguese sargasso "seaweed," perhaps from sarga, a type of grape (on this theory, the sea plant was so called from its berry-like air sacs), or from Latin sargus, a kind of fish found in the Mediterranean and eastern Atlantic, from Greek sargos. Sargasso Sea attested from 1819.

Online Etymology Dictionary, © 2010 Douglas Harper