in vitro

in vi·tro  (n vtr)

adv. & adj.

In an artificial environment outside the living organism: an egg fertilized in vitro; in vitro fertilization.

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[New Latin in vitr : Latin in, in + Latin vitr, ablative of vitrum, glass.]

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in vitro

Adverb, adj

(of biological processes or reactions) happening outside the body of the organism in an artificial environment [New Latin, literally: in glass]

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in vitro  (n vtr)

In an artificial environment, such as a test tube. Compare in vivo.

Thesaurus

Adj.	1.	in vitro - in an artificial environment outside the living organism; "in vitro fertilization" ex vivo in vivo - within a living organism; "in vivo techniques"
Adv.	1.	in vitro - in an artificial environment outside the living organism; "an egg fertilized in vitro" ex vivo