|a lamp in which light is produced by a tungsten filament heated to incandescence by an electric current. The glass bulb enclosing the filament contains a low pressure of inert gas, usually argon. Sometimes small amounts of a halogen, such as iodine, are added to improve the intensity (tungsten-halogen lamp)|
|a fool or simpleton; ninny.|
|a chattering or flighty, light-headed person.|
An incandescent electric lamp having a tungsten filament.