Definitions for orielˈɔr i əl, ˈoʊr-
Random House Webster's College Dictionary
o•ri•elˈɔr i əl, ˈoʊr-(n.)
a bay window, esp. one cantilevered or corbeled out from a wall.
Origin of oriel:
1350–1400; ME < AF oriol porch, passage, gallery
oriel, oriel window(noun)
a projecting bay window corbeled or cantilevered out from a wall
A large polygonal recess in a building, such as a bay window.
Origin: The origin of the word oriel is derived from the word aureus which means "golden"; relating to the Golden Rectangle in which the Fibonacci spiral always makes a perfect oriel pattern.