| a lamp that emits light due to the glowing of a heated material, esp. the common device in which a tungsten filament enclosed within an evacuated glass bulb is rendered luminous by the passage of an electric current through it. |
incandescent lamp  (click for larger image in new window) n. An electric lamp in which a filament is heated to incandescence by an electric current. |
incandescent lamp  (ĭn'kən-děs'ənt) Pronunciation Key
(click for larger image in new window) A lamp that produces light by heating up a filament of wire inside a bulb with an electric current, causing incandescence. The glass bulb containing the filament is filled with a nonreactive gas, such as argon, to prevent the wire from burning. Compare fluorescent lamp. |
