iodide

[ ahy-uh-dahyd, -did ]

noun

, Chemistry.

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

iodide

/ ˈaɪəˌdaɪd /

noun

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

iodide

/ ī′ə-dīd′ /

1. A chemical compound consisting of iodine together with another element or radical.

Other Words From

• sub·io·dide noun

Word History and Origins

Origin of iodide¹

First recorded in 1815–25; iod- + -ide ( def )

Example Sentences

Blasting UV light at a mix of PFAS, iodide and sulfite broke down nearly all the PFAS in a sample.

From Science News For Students

Iodide and sulfite double-team the pollutant to destroy it, Liu explains.

From Science News For Students

When UV rays release an electron from iodide, that iodide is converted into a reactive molecule which may then recapture freed electrons.

From Science News

It’s surprising that no one had demonstrated the effectiveness of using sulfite with iodide to degrade PFAS before, McKay says.

From Science News

It’s little wonder that people have been stocking up on potassium iodide pills, which temporarily stop iodine-131 from entering the thyroid—though do little to protect against exposure to any other nuclear material.

From Time

But the shops usually do not carry potassium iodide in large quantities, and many have sold out and now have long waiting lists.

From The Daily Beast

They have been going into radiated areas without any protection or potassium iodide.

From The Daily Beast

CVS, meanwhile, carries no radiation-fighting iodide, according to a representative.

From The Daily Beast

This must have depended upon the free iodide it contained, and yet such collodion has worked most admirably.

From Project Gutenberg

It has since been obtained, in a separate state, by the action of sodium upon iodide of allyl.

From Project Gutenberg

By this time the iodide of silver looked like pure solid brimstone in the wet paper.

From Project Gutenberg

HCl, cooled in ice, and diazotized with sodium nitrite solution, until starch iodide paper showed excess nitrous acid.

From Project Gutenberg

Suspecting a specific origin for this malady, I put him on the use of iodide potassium, with increasing doses.

From Project Gutenberg