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Adjective: in vitro  in 'vee-trow
  1. In an artificial environment outside the living organism
    "in vitro fertilization"
    - ex vivo
Adverb: in vitro  in 'vee-trow
  1. In an artificial environment outside the living organism
    "an egg fertilized in vitro"
    - ex vivo

Antonym: in vivo

Encyclopedia: In vitro