Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adv. In an artificial environment outside the living organism: an egg fertilized in vitro; in vitro fertilization.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. In an artificial environment outside the living organism.
  • adv. In an artificial environment outside the living organism.

from The Century Dictionary and Cyclopedia

  • Within glass, that is, a test-tube: said of chemical reactions, bacterial cultures, etc., obtained experimentally in the test-tube as contrasted with those occurring in vivo, that is, within the living body.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adv. in an artificial environment outside the living organism
  • adj. in an artificial environment outside the living organism

Etymologies

New Latin in vitrō : Latin in, in + Latin vitrō, ablative of vitrum, glass.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin in vitro ("within the glass") (Wiktionary)

Examples

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