in vitro

[in vee-troh]

adverb

1. (of a biological process) made to occur in a laboratory vessel or other controlled experimental environment rather than within a living organism or natural setting.

in vitro

/ ɪn ˈviːtrəʊ /

adverb

1. (of biological processes or reactions) made to occur outside the living organism in an artificial environment, such as a culture medium

in vitro

1. In an artificial environment, such as a test tube.

2. Compare in vivo

in vitro

1. In the laboratory; literally, “in glass” (laboratory experiments are often carried out in glass containers). In vitro conditions are distinguished from conditions that actually apply in nature. (Compare in vivo.)

In vitro appears in the expression in vitro fertilization , a way of producing human embryos in a laboratory.

Word History and Origins

Origin of in vitro¹

First recorded in 1890–95; from Latin in vitrō, literally, “in glass”

Word History and Origins

Origin of in vitro¹

New Latin, literally: in glass

Example Sentences

Yet in January, she tried again, five years after her first attempt at in vitro fertilization.

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While the business stated that its votes would uphold church teaching on abortion, it made no reference to other issues involving human life, such as euthanasia, in vitro fertilization, embryonic stem-cell use, or human cloning.

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The stand-up comic and actor had two comedy specials in recent years, including, “Son I Never Had” on Netflix, where she talked about her journey with in vitro fertilization, or IVF, and “Breadwinner” on Hulu.

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"It was an in vitro and in vivo project, both providing the same outcome," Norris says.

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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.

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