\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.