in vitro

adverb or adjective

in vi·​tro in-ˈvē-(ˌ)trō  -ˈvi- 

-ˈwē-

: outside the living body and in an artificial environment

Examples of in vitro in a Sentence

Recent Examples on the Web

This is the time when embryos are usually transferred to the uterus during in vitro fertilization treatment. —Katie Hunt, CNN Money, 30 Sep. 2025

Bonilla suggested there is no policy in her contract or the employee handbook that forbids teachers from partaking in surrogacy or in vitro fertilization. —Abigail Adams, PEOPLE, 29 Sep. 2025

Cannabis impacts female fertility as evidenced by an in vitro investigation and a case-control study. —Daniella Gray, MSNBC Newsweek, 9 Sep. 2025

What Research Actually Shows About Cloves Most existing research has been conducted on animals or in vitro with high concentrations of cloves, not with clove water or the whole spice. —Caitlin Pagán, Verywell Health, 26 Aug. 2025

Word History

Etymology

New Latin, literally, in glass

First Known Use

circa 1894, in the meaning defined above

Rhymes for in vitro

• dinitro
• nitro

Kids 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- 

: outside the living body and in an artificial environment

growth of cells in vitro

in vitro studies