Vap·o·rize v. t. [imp. & p. p. Vaporized p. pr. & vb. n. Vaporizing ]  To convert into vapor, as by the application of heat, whether naturally or artificially.
 Vaporizing surface. Steam Boilers See Evaporating surface, under Evaporate, v. t.
 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.