2 A conducting wire or thread with a high melting point, forming part of an electric bulb or thermionic valve and heated or made incandescent by an electric current.

Late 16th century: from French, or from modern Latin filamentum, from late Latin filare ‘to spin’, from Latin filum ‘thread’.

Incandescence Synonyms, Incandescence Antonyms | Merriam.

Incandescent Synonyms, Incandescent Antonyms | Thesaurus.com

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