immersion heater
noun
a small electric coil used to heat a liquid, as a cup of water, in which it is immersed.
Also called
immersion coil.
Origin of immersion heater
First recorded in 1910–15
Words nearby immersion heater
immerse,
immersed,
immerser,
immersion,
immersion foot,
immersion heater,
immersion objective,
immersionism,
immersive,
immesh,
immethodical
British Dictionary definitions for immersion heater
immersion heater
noun
an electrical device, usually thermostatically controlled, for heating the liquid in which it is immersed, esp as a fixture in a domestic hot-water tank