a gas-filled, high-intensity incandescent lamp having a tungsten filament and containing a small amount of a halogen, such as iodine, that vaporizes on heating and redeposits any evaporated tungsten particles back onto the filament: used esp. in motion-picture projectors and automobile headlights.
HALOGEN LAMP
Meaning of HALOGEN LAMP in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012