infrared
Pronunciation
Adjective
B1 Intermediate
Quick answer
Relating to a type of light that is invisible to the human eye and felt mainly as heat.
Test yourself
Which word fits the gap? "The camera used _____ light to capture animals moving in the dark."
Answer: infrared
In your own words, what does "infrared" mean?
Relating to a type of light that is invisible to the human eye and felt mainly as heat.
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