from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Dampness, especially of the air.
- n. Relative humidity.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. dampness, especially that of the air.
- n. the amount of water vapour in the air.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
- n. The content of water vapor in the air, expressed as a percent of the maximum amount of water vapor that the air can hold at the given temperature; also called relative humidity. The capacity of the air to hold moisture increases with temperature, so if the temperature changes without changing the absolute content of the atmospheric moisture, the relative humidity will also change.
from The Century Dictionary and Cyclopedia
- n. The state of being humid; moisture; dampness; especially, a moderate degree of wetness which is perceptible to the eye or touch.
- n. In meteorology, the amount of aqueous vapor in the atmosphere compared with that which is required to saturate it under the given condition as to temperature: specifically called relative humidity.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. wetness in the atmosphere
Middle English humidite, from Old French, from Medieval Latin hūmiditās, from Latin hūmidus, humid; see humid.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English humidite, from Old French, from Medieval Latin humiditas, from Latin umidus ("damp, moist, wet") (Wiktionary)