Humidity is defined as the amount of wetness or water vapor in the air.(noun)
When it is just about to rain and there's a lot of water vapor in the air, this is an example of a time when the humidity level is high.
See humidity in Webster's New World College Dictionary
noun pl. humidities
Origin: ME humydite < OFr humidite < LL humiditas < L humidus: see humid
See humidity in American Heritage Dictionary 4
Origin: Middle English humidite
Origin: , from Old French
Origin: , from Medieval Latin hūmiditās
Origin: , from Latin hūmidus, humid; see humid.
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