ETYM Old Fren. oriol gallery, corridor, Late Lat. oriolum portico, hall, prob. from Latin aureolus gilded, applied to an apartment decorated with gilding. Related to Oriole.
A projecting bay window corbeled or cantilevered out from a wall; SYN. oriel window.
Small room or recess with a polygonal bay window.
Projecting window or part of building containing window.