vapour
pronunciation
How to pronounce vapour in British English:
UK [ˈveɪpə(r)]
How to pronounce vapour in American English:
US [ˈveɪpər]
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- Noun:
- a visible suspension in the air of particles of some substance
- the process of becoming a vapor
Word Origin
- vapour
- vapour: [14] Latin vapor meant ‘steam, heat’. English acquired it via Old French vapour. The now archaic use of the plural, vapours, for a ‘fit of fainting, hysteria, etc’, which dates from the 17th century, was inspired by the notion that exhalations from the stomach and other internal organs affected the brain. Vapid [17] comes from Latin vapidus ‘insipid’, which may have been related to vapor.=> vapid
- vapour (n.)
- chiefly British English spelling of vapor; see -or.
Example
- 1. It is effective , but mercury vapour is extremely toxic .
- 2. Their method exploits the fact that water vapour changes the speed at which radar waves travel though air .
- 3. The user inhales the vapour .
- 4. But one problem was that what appeared to be real demand may have been partly vapour .
- 5. On the other , water vapour is transparent , whereas clouds reflect light .