The current water vapor content of the air (in question) AND the maximum amount of water vapor that it could carry.
relative humidity
The term is humidity.It is usually expresed as "relative humidity" which is the comparison between the amount in the air and the maximum that it can hold at a given temperature.Humidity
Relative Just like "relative humidity"
Relative humidity is a comparison of the amount of moisture that air is holding compared to the maximum amount it could hold at a given temperature. If it's holding all that it can, the relative humidity is 100%.
The temperature determines the humidity.
The relationship between relative humidity and temperature is that as temperature increases, the air can hold more water vapor, leading to a decrease in relative humidity. Conversely, as temperature decreases, the air can hold less water vapor, resulting in an increase in relative humidity.
It is called the "relative humidity". The outside air today could have saturation (100% humidity). But is is actually 42% relative humidity. That's "how much there is compared to how much there could be".
relative humidity causes heat and therefore discomfort
A psychrometer is a type of hygrometer used to measure the relative humidity in the air. It consists of two thermometers, one of which is covered with a wet cloth, allowing for the comparison of wet-bulb and dry-bulb temperatures to calculate relative humidity.
It is the comparison of how humble a person should be to how humble he is. An Egotist has a low relative humility. The phrase is a play on relative humidity, a comparison of the amount of water in air that is present compared to how much could be contained at that pressure and temperature. The same witticism works as relative "humanity"
A comparison between the actual amount of water vapor in the air and the amount it could hold if saturated is called relative humidity. It is expressed as a percentage, indicating how close the air is to being fully saturated with moisture. For example, a relative humidity of 50% means the air contains half the amount of water vapor it can hold at that temperature.
Weather forecasters speak of humidity as a comparison of the amount of moisture compared to the air temperature.