Medical Dictionary


adj in·ter·nal \in-ˈtərn-əl\

Medical Definition of INTERNAL

:  existing or situated within the limits or surface of something: as a :  situated near the inside of the body <an internal layer of abdominal muscle> b :  situated on the side toward the midsagittal plane of the body <the internal surface of the lung>
:  present or arising within an organism or one of its parts <an internal stimulus>
:  applied or intended for application through the stomach by being swallowed <an internal remedy>
in·ter·nal·ly \in-ˈtərn-əl-ē\ adverb
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