E*vap`o*ra"tion (?), n. [L. evaporatio: cf. F. évaporation.] 1. The process by which any substance is converted from a liquid state into, and carried off in, vapor; as, the evaporation of water, of ether, of camphor.

2. The transformation of a portion of a fluid into vapor, in order to obtain the fixed matter contained in it in a state of greater consistence.

3. That which is evaporated; vapor.

4. (Steam Engine) See Vaporization.

• The process by which any substance is converted from the liquid to the gaseous state.
  
• The transformation of a portion of a fluid into vapour, in order to obtain the fixed matter contained in it in a state of greater concentration.
  
• That which is evaporated; vapour.