in situ

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adverb or adjective in si·tu \ (ˌ)in-ˈsī-(ˌ)tü , -ˈsi- , -(ˌ)tyü also -ˈsē- , -(ˌ)chü \

Definition of in situ

:in the natural or original position or place
  • an in situ cancer confined to the breast duct

Origin and Etymology of in situ

Latin, in position


Medical Dictionary

in situ

adverb or adjective in si·tu \ (ˈ)in-ˈsī-(ˌ)t(y)ü, -ˈsi- also -ˈsē-, -(ˌ)chü \

medical Definition of in situ

:in the natural or original position or place
  • an in situ cancer confined to the breast duct
— see carcinoma in situ

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