fenestra

fe·nes·tra

noun \fə-ˈnes-trə\

plural fe·nes·trae\-ˌtrē, -ˌtrī\

Definition of FENESTRA

1

: a small anatomical opening (as in a bone): as

a : oval window —called also fenestra ova*lis, \-ō-ˈvā-ləs\ fenestra ves*tib*u*li, \-ves-ˈti-byə-(ˌ)lē\

b : round window —called also fenestra cochleae, fenestra ro*tun*da, \-rō-ˈtən-də\

2

: an opening cut in bone

— fe·nes·tral \-trəl\ adjective

Origin of FENESTRA

New Latin, from Latin, window

First Known Use: circa 1737

Rhymes with FENESTRA

olestra, palaestra

fe·nes·tra

noun \fə-ˈnes-trə\   (Medical Dictionary)

plural ; fe·nes·trae \-ˌtrē, -ˌtrī\ (audio pronunciation) (audio pronunciation)

Medical Definition of FENESTRA

1

: a small anatomical opening (as in a bone): as a : oval window b : round window

2

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\ (audio pronunciation) adjective