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Adjective: sterile  ste-rul [N. Amer], 'ste,rI(-u)l [Brit]
  1. Incapable of reproducing
    - unfertile, infertile
  2. Free of or using methods to keep free of pathological microorganisms
    "a sterile operating area";
    - aseptic
  3. Deficient in originality or creativity; lacking powers of invention
    "a sterile ideology lacking in originality";
    - unimaginative, uninspired, uninventive

See also: antiseptic, barren, fecundity, fertility, impotent, sterilised [Brit], sterilized, uncreative, unfertilised [Brit], unfertilized, unfruitful, unimpregnated, unproductive

Antonym: fertile

Encyclopedia: Sterile