optical fibre
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
A thin, flexible strand of glass or plastic that carries data as pulses of light.
Test yourself
Which word fits the gap? "_____ allows internet signals to travel long distances with very little loss of speed."
Answer: optical fibre
In your own words, what does "optical fibre" mean?
A thin, flexible strand of glass or plastic that carries data as pulses of light.
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