different between vapour vs cryopump

English

Noun

vapour (countable and uncountable, plural vapours)

1. British standard spelling of vapor.

Verb

vapour (third-person singular simple present vapours, present participle vapouring, simple past and past participle vapoured)

1. British standard spelling of vapor.

Middle English

Etymology 1

Borrowed from Anglo-Norman vapour, from Latin vapor.

Alternative forms

• vapor, wapour, vapoure, vapur

Pronunciation

• IPA^(key): /va??pu?r/, /va?pu?r/, /?va?pur/

Noun

vapour (plural vapours)

1. Fumes or vapour; a visible gaseous emission:
   1. A visible vapour; steam
   2. The vapour of water; mist.
   3. Fumes given off by combustion; smoke.
2. Heated air; air of a high temperature.
3. (physiology) A noxious bodily fume believed to be the cause of maladies.
4. (rare) A airborne smell; a nasal sensation transmitted via the air.
5. (rare) Effect, emanation.

Related terms

• vapouren

Descendants

• English: vapour, vapor
• Scots: vapour

References

• “v??p?ur, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2018-09-01.

Etymology 2

From Old French vaporer.

Verb

vapour

1. Alternative form of vapouren

English

Etymology

cryo- +? pump

Noun

cryopump (plural cryopumps)

1. A vacuum pump that traps gases and vapours by condensing them on a cold surface.