fusion
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The joining of two atomic nuclei into a heavier one, releasing enormous energy, or, more generally, the blending of separate things into one.
Synonyms and antonyms
Test yourself
Which word fits the gap? "The sun's energy comes from the _____ of hydrogen nuclei into helium."
Answer: fusion
In your own words, what does "fusion" mean?
The joining of two atomic nuclei into a heavier one, releasing enormous energy, or, more generally, the blending of separate things into one.
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