[ahy-uh-dahyd, -did]

noun Chemistry.

a salt of hydriotic acid consisting of two elements, one of which is iodine, as sodium iodide, NaI.
a compound containing iodine, as methyl iodide.

Origin of iodide

First recorded in 1815–25; iod- + -ide
Related formssub·i·o·dide, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for iodide

Historical Examples of iodide

British Dictionary definitions for iodide



a salt of hydriodic acid, containing the iodide ion, I
a compound containing an iodine atom, such as methyl iodide, CH 3 I
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 iodide

from comb. form of iodine + -ide.

Online Etymology Dictionary, © 2010 Douglas Harper

iodide in Medicine




A compound of iodine with a more electropositive element or group.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

iodide in Science



A chemical compound consisting of iodine together with another element or radical.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.