e ‧ vap ‧ o ‧ rate /ɪˈvæpəreɪt/ BrE AmE verb
[ Date: 1400-1500 ; Language: Latin ; Origin: past participle of evaporare , from vapor 'steam' ]
1 . [intransitive and transitive] if a liquid evaporates, or if heat evaporates it, it changes into a gas:
Most of the water had evaporated.
The sun evaporates moisture on the leaves.
2 . [intransitive] if a feeling evaporates, it slowly disappears:
Hopes of achieving peace are beginning to evaporate.
His courage had evaporated away.
—evaporation /ɪˌvæpəˈreɪʃ ə n/ noun [uncountable]