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

And that the bio-computer has in vitro living neurons and in silico artificial neurons. —Lance Eliot, Forbes, 19 Mar. 2025

Compared to in vitro systems, in chemico assays can be faster and more cost-effective. —Brad Reisfeld, The Conversation, 12 Mar. 2025

We are told more about the men’s in vitro feelings than we are permitted to see them in vivo. —Jesse Green, New York Times, 6 Mar. 2025

President Donald Trump on Tuesday signed an executive order aiming to reduce the costs of in vitro fertilization, a medical procedure that helps people facing infertility build their families. —Laura Ungar, Chicago Tribune, 19 Feb. 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