A quatrefoil is a shape made up of four overlapping circles or leaf-like designs. It is often used in architecture and design as a decorative element, symbolizing good luck or religious significance. Full definition
A mirror tiled quatrefoil mirror hangs from a white and blue striped powder room wall over a white extra wide single washstand placed on a rustic wood plank floor. (decorpad.com)
18 ″ x 18 ″ Moroccan Quatrefoil Pattern Pillow Neutral Beige Decorative Throw Pillow Case Cushion Cover (milaslittlethings.com)
READY TO SHIP - Padded Stethoscope Cover, Nurse, Doctor, Medical Assistant, Nurse Gift - Riley Blake Gray Quatrefoil with Fuchsia Minky (etsy.com)