quatrefoil (plural quatrefoils)
- (architecture) A symmetrical shape that forms the overall outline of four partially-overlapping circles of the same diameter.
- (heraldry) A stylized flower or leaf with four lobes.
- 1988, Alan Hollinghurst, The Swimming Pool Library, Penguin Books, paperback edition, page 142
- It was a narrow, gravelled island we had to lie on, guarded by glazed brick chimneys and, running along the sides, a prickly little gothic fence of iron finials and terracotta quatrefoils.