Function: noun
Date: 1820
: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature
Function: noun
Date: 1820
: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012