Longman Dictionary of Contemporary English homepage

humidity

 noun
     
Related topics: Meteorology
hu‧mid‧i‧ty [uncountable]
1 the amount of water contained in the air:
The room is kept at 72 degrees and 50% relative humidity.
2 when the air is very warm and wet:
a day of hot sunshine and humidity
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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