filament
Pronunciation
Noun
B1 Intermediate
Quick answer
A thin thread or wire, especially the thin wire inside an old-style light bulb that glows when heated.
Synonyms and antonyms
Synonyms
thread
strand
Test yourself
Which word fits the gap? "The _____ inside the bulb glowed bright orange when switched on."
Answer: filament
In your own words, what does "filament" mean?
A thin thread or wire, especially the thin wire inside an old-style light bulb that glows when heated.
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