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
Advancements have also greatly extended the number of days human embryos can grow in vitro at the earliest stages of pregnancy.
—
Alex Morris, Rolling Stone, 19 May 2026
Aiken and his longtime friend, music producer Jaymes Foster, planned to have a child through in vitro fertilization (IVF) and raise him together.
—Francesca Gariano, PEOPLE, 14 May 2026
The Porters used in vitro fertilization to assist the pregnancies.
—Mitch Sherman, New York Times, 11 May 2026
Be cautious when combining with antidiabetes drugs, as in vitro and animal studies suggest that oregano extracts might lower blood glucose levels.
—Angelica Bottaro, Verywell Health, 20 Apr. 2026
See All Example Sentences for in vitro
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.
Alex Morris, Rolling Stone, 19 May 2026
Aiken and his longtime friend, music producer Jaymes Foster, planned to have a child through in vitro fertilization (IVF) and raise him together.
—Francesca Gariano, PEOPLE, 14 May 2026
The Porters used in vitro fertilization to assist the pregnancies.
—Mitch Sherman, New York Times, 11 May 2026
Be cautious when combining with antidiabetes drugs, as in vitro and animal studies suggest that oregano extracts might lower blood glucose levels.
—Angelica Bottaro, Verywell Health, 20 Apr. 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 31 May. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
