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sterile

American  
[ster-il, -ahyl] / ˈstɛr ɪl, -aɪl /

adjective

  1. free from living germs or microorganisms; aseptic.

    Successful operations rely on timely delivery of the sterile surgical instruments needed for each procedure.

  2. incapable of producing offspring; not producing offspring.

    Synonyms:
    unfruitful, infecund
    Antonyms:
    fertile
  3. barren; not producing vegetation.

    Attempts to cultivate the land have failed because of the sterile soil.

    Antonyms:
    fertile
  4. Botany.

    1. noting a plant in which reproductive structures fail to develop.

    2. bearing no stamens or pistils.

  5. not productive of results, ideas, etc.; fruitless.

  6. lacking vitality, vibrancy, interest, etc..

    Art can transform an otherwise sterile office into a happy, inspiring, and comforting space.


sterile British  
/ ˈstɛraɪl, stɛˈrɪlɪtɪ /

adjective

  1. unable to produce offspring; infertile

  2. free from living, esp pathogenic, microorganisms; aseptic

  3. (of plants or their parts) not producing or bearing seeds, fruit, spores, stamens, or pistils

  4. lacking inspiration or vitality; fruitless

  5. economics (of gold) not being used to support credit creation or an increased money supply

"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

sterile Scientific  
/ stĕrəl,stĕrīl′ /
  1. Not able to produce offspring, seeds, or fruit; unable to reproduce.

  2. Free from disease-causing microorganisms.


Other Word 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.

Keep Reading on Vocabulary.com

Vocabulary lists containing sterile

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.

The second protein, SARM1 -- short for Sterile Alpha and TIR Motif-containing 1 -- has long been linked to axon degeneration.

From Science Daily • Jan. 27, 2026

Sterile discussions about policy can mask the moral injury that is being done there.

From Salon • Dec. 16, 2024

Sterile cabin procedures apply to anything below 10,000 feet, said independent aviation analyst Jose Suarez.

From Reuters • Aug. 26, 2022

Sterile workers in these societies take care of the queen because they are closely related to it, and as the queen has offspring, she is passing on genes from the workers indirectly.

From Textbooks • Jun. 9, 2022

Sterile flowers of numerous stamens, with club-shaped little scales intermixed, filaments very short.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa