in vitro

[in vee-troh] / ɪn ˈvi troʊ /

ADJECTIVE

artificial

Synonyms

WEAK

artificial insemination outside the womb test-tube

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Fertility treatments: Large employer health plans will be required to cover infertility treatments, including in vitro fertilization, for everyone, regardless of marital status, gender identity or sexual orientation.

From Los Angeles Times • Jan. 1, 2026

So far, the research has been conducted only in vitro.

From Science Daily • Dec. 7, 2025

Nelson was still married in 2020 when the fertility clinic called her at work with devastating news: Her husband had just requested the destruction of the embryos they created through in vitro fertilization, or IVF.

From The Wall Street Journal • Nov. 23, 2025

Initial in vitro experiments demonstrated that arginine slows the formation of Aβ42 aggregates in a concentration-dependent fashion.

From Science Daily • Nov. 21, 2025

When that didn’t work, he recommended we move to in vitro fertilization.

From "Becoming" by Michelle Obama