Source : Webster's Revised Unabridged Dictionary (1913)

Evaporate \E*vap"o*rate\, v. t.
   1. To convert from a liquid or solid state into vapor
      (usually) by the agency of heat; to dissipate in vapor or
      fumes.

   2. To expel moisture from (usually by means of artificial
      heat), leaving the solid portion; to subject to
      evaporation; as, to evaporate apples.

   3. To give vent to; to dissipate. [R.]

            My lord of Essex evaporated his thoughts in a
            sonnet.                               --Sir. H.
                                                  Wotton.

   {Evaporating surface} (Steam Boilers), that part of the
      heating surface with which water is in contact.

Evaporate \E*vap"o*rate\, v. t. [imp. & p. p. {Evaporated}; p.
   pr. & vb. n. {Evaporating}.] [L. evaporatus, p. p. of
   evaporare; e out + vapor steam or vapor. See {Vapor}.]
   1. To pass off in vapor, as a fluid; to escape and be
      dissipated, either in visible vapor, or in practice too
      minute to be visible.

   2. To escape or pass off without effect; to be dissipated; to
      be wasted, as, the spirit of writer often evaporates in
      the process of translation.

            To give moderate liberty for griefs and discontents
            to evaporate . . . is a safe way.     --Bacon.

Evaporate \E*vap"o*rate\, a. [L. evaporatus, p. p.]
   Dispersed in vapors. --Thomson.

Source : WordNet®

evaporate
     v 1: lose or cause to lose liquid by vaporization leaving a more
          concentrated residue; "evaporate milk" [syn: {vaporize},
           {vaporise}]
     2: cause to change into a vapor; "The chemist evaporated the
        water" [syn: {vaporise}]
     3: change into a vapor; "The water evaporated in front of our
        eyes" [syn: {vaporise}]