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

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

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