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Definition of chlorination

chlorination

/ˌklɔːr.əˈneɪ.ʃən/
chlo · ri · na · tion
Plural:chlorinations
•
Adjective:chlorinated
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chlorination Lexical Profile

chlorination Game Scores & Validity

• noun

1

The process of adding chlorine or chlorine compounds to water or sewage to kill harmful bacteria, viruses, and other microbes.

Example

"The municipal water authority relies on filtration and chlorination to ensure that tap water remains safe to drink."

2

A chemical reaction in which one or more chlorine atoms are introduced into a molecule or chemical compound.

Example

"In the laboratory, the direct chlorination of methane in the presence of ultraviolet light yields methyl chloride."

Antonyms
View all antonyms for chlorination

• Rhymes for chlorination

• Nearby Words

chloride
chlorinate
chlorinated
chlorination
chlorine
chloroform
chlorophonia

Word Origin & Etymology

Formed in the mid-19th century from the verb 'chlorinate' plus the noun suffix '-ion', ultimately deriving from Ancient Greek 'chlōros' (meaning pale green or greenish-yellow), in reference to the color of chlorine gas.

Cite this Entry

Wordmom. (2026). Definition of Chlorination. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/chlorination
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