Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “filament”

filament

noun [C]     /ˈfɪl.ə.mənt/
a thin thread or fibre of natural or artificial material: Toothbrushes should be replaced when the filaments become worn. glass/silk filamentsGeneral words for textiles a thin wire, especially one that lights up inside an electric light bulb: a tungsten filamentElectrical components and circuitry
(Definition of filament noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of filament

Definitions of “filament” in other dictionaries

Word of the Day

warm-up

something that you do to prepare yourself for an activity, especially gentle exercises before a physical activity

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More