• synonyms

in vivo

[in vee-voh]
adverb, adjective
  1. (of a biological process) occurring or made to occur within a living organism or natural setting.
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Compare in vitro.

Origin of in vivo

First recorded in 1900–05, in vivo is from the Latin word in vīvō in (something) alive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for vivo

Historical Examples of vivo

  • One should not, for example, confuse habeo with abeo; or bibo and vivo.

    The Mediaeval Mind (Volume I of II)

    Henry Osborn Taylor

  • A man is zonzo or vivo—a fool or more than capable—there is no medium.

  • How vivo affected aiming is easily seen: with its bore level, a 4-pounder falconet ranged 250 paces.

  • In this case then the condition of the blood in vivo is satisfactorily explained by the absence of function of bone-marrow.

  • The figure is just as Vasari describes it, ritratto dal' vivo e senza artificio niuno.

British Dictionary definitions for vivo


adjective, adverb
  1. music (in combination) with life and vigourallegro vivo
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Word Origin for vivo

Italian: lively

in vivo

adverb, adjective
  1. (of biological processes or experiments) occurring or carried out in the living organism
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Word Origin for in vivo

New Latin, literally: in a living (thing)
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

Word Origin and History for vivo

in vivo

Latin; "within a living organism" (see viva).

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Online Etymology Dictionary, © 2010 Douglas Harper

vivo in Medicine

in vivo

  1. Within a living organism.
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Related formsin vivo adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

vivo in Science

in vivo

[ĭn vēvō]
  1. Inside a living organism. Compare in vitro.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vivo in Culture

in vivo

[(in vee-voh)]

In nature; literally, “in life.” In vivo conditions are distinguished from those that might exist only in a laboratory. (Compare in vitro.)

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.