I. -_strəl noun
( -s )
Etymology: Middle English, from Middle French, from Old French, window, opening, from fenestre, from Latin fenestra
: a casement or window sash closed with cloth or translucent paper instead of glass
II. adjective
Etymology: Latin fenestra + English -al
1. : of or relating to a window
2.
[New Latin fenestra + English -al ]
: of, relating to, or having a fenestra