rarefaction

Noun

Meaning

The act or process of rarefying; the state of being rarefied; -- opposed to condensation; as, the rarefaction of air.

Source: Webster's dictionary

development growth increase expansion atmosphere extension vacuum inflation helium baptism ammonia void distillation purification amplification

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compression fall epitome dirtying decline decrease

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concentration

rarefact

a sound wave causes periodic rarefactions in its medium Source: Internet

Hence, inertial cavitation can occur even if the rarefaction in the liquid is insufficient for a Rayleigh-like void to occur. Source: Internet

The opening between the reed and the mouthpiece makes very little difference to the reflection of the rarefaction wave. Source: Internet

This rarefaction wave travels back up the tube (image 2). Source: Internet

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