tungsten lamp

noun

1. an incandescent electric lamp in which the filament is made of tungsten.

tungsten lamp

noun

1. 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 )

tungsten lamp

1. An incandescent electric lamp having a tungsten filament.

Word History and Origins

Origin of tungsten lamp¹

First recorded in 1905–10

Example Sentences

How many candle power should a 20-watt tungsten lamp give if its efficiency is one watt per candle power?

From Project Gutenberg

Ordinary arc lamps, and even flame arc lamps, are being displaced by the modern high-candle-power gas-filled tungsten lamp.

From Project Gutenberg

Then Ruth touched the trigger of the big tungsten lamp, and the spotlight shot the herd at about the middle of its advance wave.

From Project Gutenberg

One 25-watt tungsten lamp or its equivalent provided for every 20 seats will give fairly good illumination in a small theater.

From Project Gutenberg

What is the "efficiency" of a 40-watt tungsten lamp if it gives 34 candle power?

From Project Gutenberg