O OneWordDaily
AI-generated image
Word of the Day Tuesday, June 9, 2026

rarefaction

/ˌrɛrɪˈfækʃən/ noun · British & US
Valid in UKValid in US
Share WhatsApp

What does rarefaction mean?

noun

The act of making something less dense or less crowded; a decrease in density or frequency. In music, a rarefaction is a region of lower air pressure in a sound wave.

Example

"The rarefaction of the gas in the container caused the balloon to expand."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for rarefaction

Antonyms of rarefaction

Rhymes with rarefaction

Etymologically related