Humidity

[hyoo-mid-i-tee or, often, yoo-] /hyuˈmɪd ɪ ti or, often, yu-/

noun
1.
condition; moistness; dampness.
2.
.
3.
an uncomfortably high amount of :
It’s not the heat, it’s the humidity that tires me out.
/hjuːˈmɪdɪtɪ/
noun
1.
the state of being humid; dampness
2.
a measure of the amount of moisture in the air See relative humidity, absolute humidity
n.

late 14c., from Old French humidité, from Latin humiditatem (nominative humiditas), from humidus (see humid).

humidity hu·mid·i·ty (hyōō-mĭd’ĭ-tē)
n.
Dampness, especially of the air.
humidity
(hy-mĭd’ĭ-tē)
The amount of water vapor in the atmosphere, usually expressed as either absolute humidity or relative humidity.
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.