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chloro-

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variant of chlor-1 before a consonant: chlorophyll.
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Other definitions for chloro- (2 of 2)

chloro-2

variant of chlor-2 before a consonant: chloroform.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

WORDS THAT USE CHLORO-

What does chloro- mean?

Chloro- is a combining form used like a prefix that can mean “green” or indicate the chemical element chlorine. It is used in many medical and scientific terms, especially in biology and chemistry.

Chloro- comes from the Greek chlōrós, meaning “light green” or “greenish yellow.” Chlorine is so named because the gas has a pale green color.

Chloro- is a variant of chlor-, as in chloranil, used when combined with words or word elements beginning with a consonant. However, in chemistry, chlor- is also often combined to words or word elements beginning with consonants.

Want to know more? Read our Words That Use chlor article.

Examples of chloro-

A word you are likely familiar with that features chloro- is chlorophyll, “the green coloring matter of leaves and plants.”

As we know, the first part of the word, chloro-, means “green.” The second part of the word, phyll, means “leaf,” from the Greek phýllon. The word chlorophyll, then, literally translates to “green leaf.” How sensible!

What are some words that use the combining form chloro-?

What are some other forms that chloro- may be commonly confused with?

Break it down!

What elements do chemical compounds known as chlorocarbons always contain?

How to use chloro- in a sentence

British Dictionary definitions for chloro-

chloro-

before a vowel chlor-


combining form
indicating the colour greenchlorophyll
chlorinechloroform
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
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