Medical Dictionary


noun fe·nes·tra \fə-ˈnes-trə\
plural fe·nes·trae \-ˌtrē, -ˌtrī\

Medical Definition of FENESTRA

:  a small anatomical opening (as in a bone): as a :  oval window b :  round window
a :  an opening like a window cut in bone (as in the inner ear in the fenestration operation) b :  a window cut in a surgical instrument (as an endoscope)
fe·nes·tral \-trəl\ adjective
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