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.
Australian scientists successfully created the world’s first kangaroo embryos through in vitro fertilization (IVF). Sara Hashemi, Smithsonian Magazine, 7 Feb. 2025 In the surrogacy process, sperm and eggs from the parents and/or donors are used to create embryos, which are then implanted in the gestational carrier via in vitro fertilization (IVF). Elizabeth Logan, Glamour, 1 Feb. 2025 Prior to his death, he was awarded the Nobel Prize in 2010 for his groundbreaking work developing in vitro fertilization. Lynsey Eidell, People.com, 23 Nov. 2024 Cities are promising to cover the cost of in vitro fertilization. Alexandra Stevenson, New York Times, 17 Jan. 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

Dictionary Entries Near in vitro

Cite this Entry

“In vitro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20vitro. Accessed 14 Feb. 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

More from Merriam-Webster on in vitro

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