irreversible

Meanings

1. 1
   adj

   incapable of being reversed

   Irreversible momentum toward revolution.

2. 2
   adj

   Incapable of being reversed or turned about or back; incapable of being made to run backwards.

   An irreversible engine.

3. 3
   adj

   Incapable of being reversed, recalled, repealed, or annulled.

   An irreversible sentence or decree.

4. 4
   adj

   Incapable of being reversed to the original state without consumption of free energy and increase of entropy.

From ir- + reversible.

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