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

  • We're pacing an in vitro hepatoblastoma as it approaches pulmonary tissue.

    Blood Test

  • Correlation of two-hybrid affinity data with in vitro measurements.

    The Edge of Evolution

  • This high-tech but increasingly widespread practice has added a new twist to in vitro fertilization.

    The Language of God

  • Fetal development identical to that observed in utero is obtained in vitro through four days post-fertilization with human egg and sperm, and with other vertebrates for much larger fractions of total gestation.

    THE HIDDEN FACE OF GOD

  • Frequency of drug resistance in Plasmodium falciparum: a nonsynergistic combination of 5-fluoroorotate and atovaquone suppresses in vitro resistance.

    The Edge of Evolution

  • An emergency C-section and subsequent transfusion had saved her life, but the scrawny baby had been in distress in vitro and had been fussy and colicky for the first year of his life.

    Shiver

  • Diamond, Ethanol regulation of adenosine receptor-stimulated cAMP levels in a clonal neural cell line: an in vitro model of cellular tolerance to ethanol, Proceedings of the National Academy of Sciences of the United States of America 83 1986: 2105-8.

    Alcohol and The Addictive Brain

  • Herz, Effects of chronic ethanol treatment on the in vitro biosynthesis of pro-opiomelanocortin and its posttranslational processing of beta-endorphin in the intermediate lobe of the rat pituitary, Journal of Neurochemistry 43 1984: 607-13.

    Alcohol and The Addictive Brain

  • Intracytoplasmic injection, or ICI, is an extension of current in vitro fertilization techniques.

    Isabel’s Bed

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