Definition of in vitro in English:

in vitro

Line breaks: in vitro
Pronunciation: /ɪn ˈviːtrəʊ
 
/

adjective & adverb

Biology
  • (Of processes or reactions) taking place in a test tube, culture dish, or elsewhere outside a living organism: [as adjective]: in vitro fertilization The opposite of in vivo.
    More example sentences
    • In vitro expression of protein is used in functional genomics as a bridge between traditional genomics and proteomics.
    • In vitro fertilization, or IVF, has helped thousands of couples achieve pregnancy.

Origin

Latin, literally 'in glass'.

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noun
a small amount; a little