1
: a compound of chlorine with another element or group
especially : a salt or ester of hydrochloric acid
2
: a monovalent anion consisting of one atom of chlorine

Examples of chloride in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Its experimental results could help determine whether fast-spectrum molten chloride reactors can progress toward practical applications, including future maritime power systems. — Aamir Khollam, Interesting Engineering, 16 Oct. 2026 Electrolytes are minerals like chloride, sodium, magnesium, calcium and potassium. — Sheah Rarback, Miami Herald, 14 Oct. 2026 Other antiseptic ingredients common in over-the-counter rinses, including cetylpyridinium chloride, essential oils, iodine and hydrogen peroxide found in some Colgate, Crest and Listerine products, may produce similar effects with long-term use. — Hanna Wickes, Sacbee.com, 5 Oct. 2026 Other antiseptic ingredients found in popular over-the-counter products, including cetylpyridinium chloride, essential oils, iodine and hydrogen peroxide, may produce similar effects with long-term use. — Hanna Wickes, Charlotte Observer, 5 Oct. 2026 See All Example Sentences for chloride

Word History

Etymology

German Chlorid, from chlor- + -id -ide

First Known Use

1812, in the meaning defined at sense 1

Time Traveler
The first known use of chloride was in 1812

Browse Nearby Words

Cite this Entry

“Chloride.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chloride. Accessed 20 Oct. 2026.

Kids Definition

chloride

noun
: a chemical compound of chlorine with another element, group, or substance

Medical Definition

1
: a compound of chlorine with another element or radical
especially : a salt or ester of hydrochloric acid

called also muriate

2
: a monovalent anion consisting at one atom of chlorine

More from Merriam-Webster on chloride

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!