noun
: a high-power incandescent lamp operating at a lower filament temperature than a lamp used for illumination and yielding a large percentage of infrared radiation that is useful for heating purposes
noun
: a high-power incandescent lamp operating at a lower filament temperature than a lamp used for illumination and yielding a large percentage of infrared radiation that is useful for heating purposes
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012