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humidity

- 8 dictionary results

hu⋅mid⋅i⋅ty

[hyoo-mid-i-tee or, often, yoo-]
–noun
1. humid condition; moistness; dampness.
2. relative humidity.
3. an uncomfortably high amount of relative humidity: It's not the heat, it's the humidity that tires me out.

Origin:
1350–1400; ME humydite < L (h)ūmiditās. See humid, -ity

relative humidity

–noun
the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure. Abbreviation: RH, rh
Also called humidity.


Origin:
1810–20
hu·mid·i·ty   (hyōō-mĭd'ĭ-tē)   
n.  
  1. Dampness, especially of the air.
  2. Relative humidity.

[Middle English humidite, from Old French, from Medieval Latin hūmiditās, from Latin hūmidus, humid; see humid.]

Humidity

Hu*mid"i*ty\, n. [Cf. F. humidit['e].] Moisture; dampness; a moderate degree of wetness, which is perceptible to the eye or touch; -- used especially of the atmosphere, or of anything which has absorbed moisture from the atmosphere, as clothing.

Note: In hygrometrical reports (as of the United States Signal Service) complete saturation of the air is designated by Humidity 100, and its partial saturation by smaller numbers.

humidity (relative and absolute)

The amount of water vapor in the air. Humidity is measured in two ways: (1) Absolute humidity is the percentage of water vapor actually present in the air. (2) Relative humidity is the absolute humidity divided by the amount of water that could be present in the air. Relative humidity indicates the degree of comfort or discomfort one feels from the humidity, because it indicates the amount of perspiration that can evaporate from the skin.


Main Entry: hu·mid·i·ty
Pronunciation: hyü-'mid-&t-E, yü-
Function: noun
Inflected Form: plural -ties
: a moderate degree of wetness especially of the atmosphere —see ABSOLUTE HUMIDITY, RELATIVE HUMIDITY

humidity hu·mid·i·ty (hy&oomacr;-mĭd'ĭ-tē)
n.
Dampness, especially of the air.

humidity   (hy-mĭd'ĭ-tē)  Pronunciation Key 
The amount of water vapor in the atmosphere, usually expressed as either absolute humidity or relative humidity.
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