Search Result for "immersion heater":
Wordnet 3.0

NOUN (1)

1. a heating element that is immersed in the liquid that is to be heated (as in a hot-water tank); 



WordNet (r) 3.0 (2006):

immersion heater
    n 1: a heating element that is immersed in the liquid that is to
         be heated (as in a hot-water tank)