A bay window is a window space projecting outward from the main walls of a building and forming a bay in a room. A bow window is a form of bay with a curve rather than angular facets; an oriel window
A canted oriel window in Lengerich, Germany
Typical residential canted bay window, supported by a foundation and rising from the ground
Chörlein at the parsonage of St. Sebaldus Church, Nuremberg, before 1361
Two superposed Renaissance oriel windows in Colmar, France
A cant in architecture is an angled line or surface that cuts off a corner. Something with a cant is canted.
Bay window
…from the ground, and run over one or multiple storeys. In plan, the most frequently used shapes are isosceles trapezoid (which may be referred to as a canted bay window) and rectangle. But other polygonal shapes with more than three faces are also common, as are curved shapes. If a bay window is curved it…
The Chiesa del Purgatorio, Ragusa: the facade are angled (canted) back from the centre.
County Hall, Aylesbury with canted recesses