in vitro

adverb or adjective

in vi·​tro in-ˈvē-(ˌ)trō How to pronounce in vitro (audio) -ˈvi- How to pronounce in vitro (audio)
-ˈwē-
: outside the living body and in an artificial environment

Examples of in vitro in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One law enforcement source said authorities are also aware of a rambling audio recording posted online that could be associated with the incident, in which a man describes his intention to attack an in vitro fertilization clinic. Cnn.com Wire Service, Mercury News, 20 May 2025 American Reproductive Centers claims to be the first and only full-service fertility center and in vitro fertilization lab in Coachella Valley, according to its website. Sophia Compton, FOXNews.com, 19 May 2025 The American Reproductive Centers is Coachella Valley’s first and only full-service fertility center and in vitro fertilization lab, according to its website. Muri Assunção, New York Daily News, 17 May 2025 The Context American Reproductive Centers is a fertility and in vitro fertilization (IVF) clinic that offers frozen embryo transfers using patient and donor eggs, according to its website. Hollie Silverman, MSNBC Newsweek, 17 May 2025 See All Example Sentences for in vitro

Word History

Etymology

New Latin, literally, in glass

First Known Use

circa 1894, in the meaning defined above

Time Traveler
The first known use of in vitro was circa 1894

Cite this Entry

“In vitro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20vitro. Accessed 3 Jun. 2025.

Kids Definition

in vitro

adverb or adjective
in vi·​tro in-ˈvē-(ˌ)trō How to pronounce in vitro (audio)
: outside the living body and in an artificial environment
an egg fertilized in vitro
Etymology

Latin, literally, "in glass"

Medical Definition

in vitro

adverb or adjective
: outside the living body and in an artificial environment
growth of cells in vitro
in vitro studies
Last Updated: - Updated example sentences
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