English Explanatory Dictionary

vapor

English dictionary entry

Meanings

noun
  1. Cloudy diffused matter such as mist, steam or fumes suspended in the air.
  2. The gaseous state of a substance that is normally a solid or liquid.
  3. Something insubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.
  4. Any medicinal agent designed for administration in the form of inhaled vapour.
  5. Hypochondria; melancholy; the blues; hysteria, or other nervous disorder.
  6. Wind; flatulence.
verb
  1. To become vapor; to be emitted or circulated as vapor.
  2. To turn into vapor.
  3. To emit vapor or fumes.
  4. To use insubstantial language; to boast or bluster.
  5. To give (someone) the vapors; to depress, to bore.

Pronunciation

/ˈveɪpə/ /ˈveɪpɚ/ en-us-vapour.ogg En-us-vapor.ogg

Word forms

vapor vapors vapour vaporing vapored

Etymology

From Middle English vapour, from Anglo-Norman vapour, Old French vapor, from Latin vapor (“steam, heat”).

Related words

dew point get the vapors

Derived words

aqueous vapor equilibrium vapor pressure mercury-vapor lamp saturated vapor pressure saturation vapor pressure sodium vapor lamp vapor barrier vaporescence vaporescent vapor lock vapor pen vapor pressure vapor retarder vapor trail water vapor
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