rarefy has definitions from the field of chemistry
1
[ verb ] make more subtle or refined

Synonyms

subtilize sublimate

Related terms

change

2
[ verb ] lessen the density or solidity (of a substance)

Examples

"The bones are rarefied"

Related terms

change rarefaction

3
[ verb ] (chemistry) weaken the consistency of (a chemical substance)

Synonyms

attenuate

Related terms

weaken chemistry

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