Dictionary.com
definitions

alginate

[al-juh-neyt]
noun
  1. a salt of alginic acid.

Origin of alginate

First recorded in 1935–40; algin + -ate2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for alginate

alginate

noun
  1. a salt or ester of alginic acid
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