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glasswort

[glas-wurt, -wawrt, glahs-]
noun
  1. any of several plants of the genus Salicornia, of the amaranth family, having succulent stems with rudimentary leaves, formerly used, when burned to ashes, as a source of soda for glassmaking.
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Origin of glasswort

First recorded in 1590–1600; glass + wort2
Also called samphire.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for glasswort

glasswort

noun
  1. Also called: marsh samphire any plant of the chenopodiaceous genus Salicornia, of salt marshes, having fleshy stems and scalelike leaves: formerly used as a source of soda for glass-making
  2. another name for saltwort (def. 1)
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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