Definition of spandrel in English:

spandrel

noun

Architecture
  • 1The almost triangular space between one side of the outer curve of an arch, a wall, and the ceiling or framework.

    • ‘On the rear wall is a kind of private chapel, a wall niche framed by pilasters and faced with spandrels with inlaid vegetal ornament, which shelters an altar.’
    • ‘Relief panels containing scenes from the Childhood of Christ filled the triangular spandrels between the gables dominating the screen's facade.’
    • ‘The building service core is a solid, while transparency is achieved through variations in a curtain wall composed of vision, spandrel, and fritted glass.’
    • ‘The new tower appears in Bayard's photograph of 1851, yet Ruskin's spandrel is just visible - still unscathed.’
    • ‘About 1,100 glass panels, including windows and spandrels, were blown out.’
    1. 1.1 The space between the shoulders of adjoining arches and the ceiling or moulding above.

Origin

Late Middle English: perhaps from Anglo-Norman French spaund(e)re, or from espaundre expand.

Pronunciation:

spandrel

/ˈspandrɪl/