burner

noun

• a thing that burns something or is burned, in particular.
• a part of a stove, lamp, etc., that emits and shapes a flame.
• an apparatus in which a fuel is used or an aromatic substance is heated.
• [with adjective] an activity that uses something of a specified kind as energy:uphill walking is a great calorie burner
• short for CD burner.
• informal a handgun.