Definition, Meaning & Synonyms
rarefaction
Noun
/ˌrɛərɪˈfækʃən/
Definition
The process of reducing the density of a substance, especially in the context of sound waves, resulting in lower pressure.
Examples
- During the rarefaction phase of a sound wave, the air molecules spread apart.
- In a rarefaction zone, the pressure is lower than in the surrounding areas.
- The rarefaction of the air can lead to an increase in sound wave speed.
Meaning
Rarefaction refers to the decrease in pressure and density that occurs in a medium, often associated with the propagation of sound waves in air. It is the opposite of compression, where particles are pressed together.
Synonyms
- Rarefied state
- Decompression
- Expansion
