chemo-

2 of 2

combining form

variants or less commonly chemi-
1
: chemical : chemistry
chemotaxis
2
: chemically
chemisorb

Examples of chemo in a Sentence

Recent Examples on the Web
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Noun
During his chemo sessions, Reeve did cold-cap therapy to keep his hair. — Allison Degrushe, StyleCaster, 29 Sep. 2026 Some of them are fighting presently and in chemo presently and still coming out to be on our show. — Courtney Cole, CBS News, 14 Sep. 2026 Annotated divorce papers blown up and mounted, interactive exhibits detailing how your mom’s last round of chemo didn’t take, souvenir T-shirts emblazoned with your best friend’s last words before the car crash. — Jill Lepore, New Yorker, 6 Sep. 2026 For example, doctors have to monitor the impact of chemo on Jake’s kidneys and heart. — Wendy Grossman Kantor, PEOPLE, 25 Aug. 2026 See All Example Sentences for chemo

Word History

Etymology

Noun

by shortening

Combining form

chem- (in chemical entry 1) + -o-

First Known Use

Noun

1977, in the meaning defined above

Time Traveler
The first known use of chemo was in 1977

Browse Nearby Words

Cite this Entry

“Chemo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chemo. Accessed 2 Oct. 2026.

Kids Definition

chemo-

combining form
: chemical : chemistry
chemotaxis
Etymology

Combining form

scientific Latin, from Greek chēmeia "alchemy" — related to alchemy, chemistry

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