from The Century Dictionary and Cyclopedia
- Shaped like the heater of a smoothing-iron; triangular; having one of the sides straight and the two others, which are equal and the counterparts of each other, curved. See heater .
Sorry, no etymologies found.
RICHARD I. and amongst the Barons of Magna Charta, were superseded by the smaller “heater-shaped” Shield as early as the reign of HENRY III.
Small heater-shaped scutcheon with plain hooked head.