Learn how to say Spandrels correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word spandrel:
the almost triangular space between one side of the outer curve of an arch, a wall, and the ceiling or framework.
the space between the shoulders of adjoining arches and the ceiling or moulding above.
late Middle English: perhaps from Anglo-Norman French spaund(e)re, or from espaundre ‘expand’