What does evaporating mean?
Evaporating describes the process by which a liquid turns into vapour, usually when heated or exposed to air. It is most commonly encountered as the present participle of the verb 'evaporate', as in water evaporating from a pan or sweat evaporating from skin. Beyond its literal scientific sense, the word is widely used metaphorically: money, opportunities, patience, and public support can all be described as evaporating, conveying a sense of steady, often unnoticed disappearance rather than sudden loss. The term carries a neutral register, appearing equally in chemistry textbooks and news reporting. Its figurative power lies in the image of something gradually diminishing into thin air — a useful and vivid way to express slow decline or vanishing.
Present participle of 'evaporate': to change from a liquid into a gas or vapour.
"The solvent was evaporating under reduced pressure in the lab."
In science, evaporation specifically occurs below the boiling point; at boiling point the process is called boiling.
To disappear or fade away gradually until nothing remains.
"Their savings were evaporating month by month as costs rose."
Every drop of water in your glass has been evaporating and raining back down for billions of years — Earth's water cycle never stops.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of evaporating
Evaporating derives from the Latin verb 'evaporare', formed from 'ex-' meaning out of and 'vapor' meaning steam or vapour. The word entered English via French in the late Middle Ages, with the verb 'evaporate' well established by the early modern period. It shares its root with related English words such as 'vapor', 'vaporize', and 'vaporous', all ultimately tracing back to the same Latin noun for visible steam or exhalation.
Related word forms
How evaporating is actually used
Most often used in continuous tenses to describe an ongoing process. In scientific contexts it refers strictly to liquid-to-gas phase change below boiling point; figurative uses are common in journalism and everyday speech, often carrying a connotation of gradual loss or decline.
Easily confused with evaporating
'Evaporative' is an adjective describing something that causes or relates to evaporation (as in an 'evaporative cooler'), while 'evaporating' is the verb form describing the ongoing process itself.