noun The condition of being rarefied. noun A decrease in density and pressure in a medium, such as air, caused by the passage of a sound wave.

What does word rarefaction mean?

1 : the action or process of rarefying. 2 : the quality or state of being rarefied. 3 : a state or region of minimum pressure in a medium traversed by compressional waves (such as sound waves)

How do you use rarefaction in a sentence?

Rarefaction sentence example

The heat communication is then chiefly in the quarter vibration just preceding greatest rarefaction , and the vibration is not maintained. Like Anaximenes, he believed air to be the one source of all being, and all other substances to be derived from it by condensation and rarefaction .