in vitro
adverb or adjective
in vi·tro
in-ˈvē-(ˌ)trō 
-ˈvi-
-ˈvi-
-ˈwē-
: outside the living body and in an artificial environment
Examples of in vitro in a Sentence
Recent Examples on the Web
Wellness influencer Gabriela Martins Santos de Moura has died at 31 following complications during an in vitro fertilization procedure.
—
Vivian Kwarm, New York Daily News, 26 Feb. 2026
Score’s daughter is neither her nor her partner’s biological child, the result of an error during the in vitro fertilization process.
—Martin E. Comas, The Orlando Sentinel, 25 Feb. 2026
The president mentioned TrumpRx, his signature prescription drug pricing program, and his desire to make in vitro fertilization (IVF) treatment more affordable.
—Tanya Lewis, Scientific American, 25 Feb. 2026
The campaign mischaracterizes facts about same-sex parenting through California cases designed to maximize outrage, while specifically targeting in vitro fertilization and surrogacy as purported gateways to promoting LGBTQ+ families.
—Los Angeles Times, 6 Feb. 2026
See All Example Sentences for in vitro
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Vivian Kwarm, New York Daily News, 26 Feb. 2026
Score’s daughter is neither her nor her partner’s biological child, the result of an error during the in vitro fertilization process.
—Martin E. Comas, The Orlando Sentinel, 25 Feb. 2026
The president mentioned TrumpRx, his signature prescription drug pricing program, and his desire to make in vitro fertilization (IVF) treatment more affordable.
—Tanya Lewis, Scientific American, 25 Feb. 2026
The campaign mischaracterizes facts about same-sex parenting through California cases designed to maximize outrage, while specifically targeting in vitro fertilization and surrogacy as purported gateways to promoting LGBTQ+ families.
—Los Angeles Times, 6 Feb. 2026
See All Example Sentences for in vitro
Cite this Entry
“In vitro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20vitro. Accessed 2 Mar. 2026.
Copy CitationKids Definition
in vitro
adverb or adjective
in vi·tro
in-ˈvē-(ˌ)trō
: 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
in vi·tro
in-ˈvē-(ˌ)trō
-ˈvi-
-ˈvi-
: outside the living body and in an artificial environment
growth of cells in vitro
in vitro studies
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