非ひ可か逆ぎゃく変へん化か

noun

irreversible change

Technical term used in physics, chemistry, and other sciences to describe a change that cannot be undone.

See also: 不可逆変化

• 熱ねつ力りき学がくでは、非ひ可か逆ぎゃく変へん化かはエントロピーの増ぞう大だいを伴ともなう。

  In thermodynamics, an irreversible change involves an increase in entropy.