sterile
Americanadjective
-
free from living germs or microorganisms; aseptic.
Successful operations rely on timely delivery of the sterile surgical instruments needed for each procedure.
-
incapable of producing offspring; not producing offspring.
- Synonyms:
- unfruitful, infecund
- Antonyms:
- fertile
-
barren; not producing vegetation.
Attempts to cultivate the land have failed because of the sterile soil.
- Antonyms:
- fertile
-
Botany.
-
noting a plant in which reproductive structures fail to develop.
-
bearing no stamens or pistils.
-
-
not productive of results, ideas, etc.; fruitless.
-
lacking vitality, vibrancy, interest, etc..
Art can transform an otherwise sterile office into a happy, inspiring, and comforting space.
adjective
-
unable to produce offspring; infertile
-
free from living, esp pathogenic, microorganisms; aseptic
-
(of plants or their parts) not producing or bearing seeds, fruit, spores, stamens, or pistils
-
lacking inspiration or vitality; fruitless
-
economics (of gold) not being used to support credit creation or an increased money supply
-
Not able to produce offspring, seeds, or fruit; unable to reproduce.
-
Free from disease-causing microorganisms.
Other Word Forms
Derived Forms
Etymology
Origin of sterile
First recorded in 1545–55; from Latin sterilis “barren, unfruitful”
Explanation
A sterile person can't have kids, and a sterile environment is bland and boring. In both cases, sterile means lifeless. When you hear about a sterile person, it means they can't have kids: sterile women can't get pregnant, and sterile men can't be fathers. But the concept of sterility applies to things, too. An empty, white room with nothing in it is sterile. And a surgeon's instruments better be sterile — meaning they're free from germs and bacteria.
Vocabulary lists containing sterile
The Handmaid's Tale
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Boy: Tales of Childhood
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All Thirteen
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Eradication was possible through the sterile insect technique, which uses gamma radiation to irradiate screwworm pupae and create sterile male flies.
From Los Angeles Times • Jun. 6, 2026
US officials said some four million sterile flies are now being released weekly from the sky, and that some four million more in the pupae stage were being deployed in ground release chambers.
From Barron's • Jun. 6, 2026
When produced and released in large numbers, sterile male flies mate with wild female flies, which then lay unfertilized eggs, according to the USDA.
From Los Angeles Times • Jun. 6, 2026
Experts, though, say the supply of sterile flies is too low to immediately impact and halt the growing screwworm population.
From BBC • Jun. 5, 2026
“We can't go in this one without changing to sterile uniforms. But we can look at them.”
From "Son" by Lois Lowry
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
