counterlight
[ verb koun-ter-lahyt; noun koun-ter-lahyt ]
/ verb ˌkaʊn tərˈlaɪt; noun ˈkaʊn tərˌlaɪt /
verb (used with object), coun·ter·light·ed or coun·ter·lit, coun·ter·light·ing.
to light (an interior) with windows or lights on opposite sides.
to light (an object) with a window or light directly opposite.
noun
a light or window that counterlights an interior or object.
Compare
crosslight.