iodide

noun

io·​dide ˈī-ə-ˌdīd 

: a salt of hydriodic acid

also : the monovalent anion I⁻ of such a salt

Examples of iodide in a Sentence

Recent Examples on the Web

In a wafer-thin crystalline sample of nickel iodide, the team observed that the spins of nickel atoms were arranged in a spiral pattern throughout the material’s lattice. —Abhimanyu Ghoshal, New Atlas, 13 June 2025

These have electrolytic zinc iodide and zinc bromide fluids dissolving and releasing energy through a chemical reduction and oxidation reaction (hence the term 'redox'). —New Atlas, 30 Jan. 2025

According to a report in Critical Care Explorations, researchers last year identified a hidden hero that evolved to combat the stress: iodide, a form of iodine released by thyroid hormones. —Marisa Sloan, Discover Magazine, 9 Dec. 2021

The iodide pills help prevent the thyroid gland from absorbing radiation, which could lead to tumors, but do not treat other kinds of radiation exposure, according to the CDC. —Trevor Hughes, USA TODAY, 8 Dec. 2022

Word History

Etymology

iod(ine) + -ide

First Known Use

1822, in the meaning defined above

Phrases Containing iodide

• hydrogen iodide
• potassium iodide
• silver iodide

Rhymes for iodide

• abide
• allied
• applied
• aside
• astride
• azide
• backside
• bankside
• bastide
• bayside
• bedside
• belied

Kids Definition

iodide

noun

io·​dide ˈī-ə-ˌdīd 

: a compound of iodine with another element or chemical group

Medical Definition

iodide

noun

io·​dide ˈī-ə-ˌdīd 

: a salt of hydriodic acid

also : the monovalent anion I⁻ of such a salt