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.

"These clones were then evaluated in vitro and in a mouse model to observe their ability to migrate through a real biological filter and generate metastases," adds Arwen Conod.

From Science Daily • Mar. 21, 2026

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

Further, we deployed in vitro assays such as a liposome model and cell culture techniques to investigate the mouse and the human version of the protein to find out if they work similar.

From Science Daily • Oct. 13, 2025

This technology is part of a growing field aiming to make sperm and eggs outside of the body, known as in vitro gametogenesis.

From BBC • Sep. 30, 2025

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

From "Becoming" by Michelle Obama