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filament

filament

5 5.8
A thin wire inside a light bulb that glows to make light
  • noun
  • /ˈfɪləmənt/
  • Specialized
translation icon : filamento
  • The tungsten filament in the light bulb glows bright when electricity passes through it.
  • filament light source
  • carbon filament

So it did the right answer on the Spectra of, you know, light that comes off the filament.

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Examples

  • We were discussing these old school incandescent filament light bulbs.

  • It's going through a very thin filament, which then gets very hot.

  • This LED filament wire works so well.

  • Now if you have a look here, you can see that the filament is no longer attached.

  • Well, the heated filament emits not only light and heat, but also electrons.

  • You know, Thomas Edison tried and failed nearly 2,000 times to develop the carbonised cotton-thread filament for the incandescent light bulb.

  • After years of use, the filament in the old lamp finally burned out and needed replacing.

  • In electric bulbs, the thin filament heats up to produce both light and heat.

Synonyms

wire
vsfilament
700 1.0

A thin metal strand used to carry electricity or to fasten things

is a thin heated metal strand designed to glow and produce light in bulbs
monofilament
vsfilament
  • Specialized
7.2

Made from a single thin continuous strand, like a fishing line

is a thin heated metal strand meant to glow and produce light in bulbs

How Thin

filament
  • Specialized
5 5.8
wire
700 1.0

Surface Forms

filament singular
filaments plural

Etymology

Filament comes from the Latin filum, which means 'thread'. Think of the thin metal 'thread' inside an old light bulb that heats up and glows, and you see why that hot wire is called a filament.