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.
Employees’ health insurance must cover fertility treatments Senate Bill 729 requires employers with 100 or more employees to offer health insurance to cover infertility diagnosis and fertility treatments, including in vitro fertilization. Angela Rodriguez, Sacbee.com, 1 July 2025 Overall, the law will expand access to infertility services, including in vitro fertilization. Jasmine Laws, MSNBC Newsweek, 27 June 2025 The 2-millimeter inserter is designed to reduce trauma during placement, drawing inspiration from embryo-transfer catheters used in in vitro fertilization (IVF). Geri Stengel, Forbes.com, 20 June 2025 Your provider may also advise you to try fertility treatments like in vitro fertilization (IVF). Sarah Bence, Verywell Health, 18 June 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 9 Jul. 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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