Rarification

Pronunciation: /ˈɑɹˈɑɹiˈfaɪˈkæˌtaɪən/

Rarification (noun)

  1. The process of making a gas less dense, so its particles are farther apart.
  2. A decrease in air pressure, often meaning the air is less dense at higher places.
  3. The act of making something weaker or less concentrated by reducing its amount in a mixture.

Examples

  • Rarification happens when a gas becomes thinner at higher altitudes.
  • The process of rarification makes the gas less dense and more spread out.