frost point — the temperature of the air at which hoarfrost begins to form. * * * ▪ meteorology temperature, below 0° C (32° F), at which moisture in the air will condense as a layer of frost on any exposed surface. The frost point is analogous to the… … Universalium
frost point — The temperature at which moist air must be cooled to just reach the condition of saturation with respect to a plane’s ice surface. It is basically a dew point, except its value is below 0°C. See dew point … Aviation dictionary
Dew point — The dew point is the temperature to which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to condense into liquid water. The condensed water is called dew when it forms on a solid surface. The dew… … Wikipedia
dew point — The temperature to which a given parcel of air must be cooled at constant pressure and constant water vapor content for saturation to occur. It is the temperature at which the saturation vapor pressure of the parcel is equal to the actual vapor… … Aviation dictionary
dew point — noun The temperature at which the air becomes saturated and water vapor condenses to form dew. See Also: frost point … Wiktionary
Frost — is the solid deposition of water vapor from saturated air. It is formed when solid surfaces are cooled to below the dew point of the adjacent air. [cite web |url=http://www.weatherquestions.com/What causes frost.htm |title=What causes frost?… … Wikipedia
frost´like´ — frost «frst, frost», noun, verb. –n. 1. a freezing condition; very cold weather; temperature below the point at which water freezes: »Frost came early last winter. Frosts occur most readily in low places, especially if there is no outlet (Thomas… … Useful english dictionary
frost´less — frost «frst, frost», noun, verb. –n. 1. a freezing condition; very cold weather; temperature below the point at which water freezes: »Frost came early last winter. Frosts occur most readily in low places, especially if there is no outlet (Thomas… … Useful english dictionary
frost — frostless, adj. frostlike, adj. /frawst, frost/, n. 1. a degree or state of coldness sufficient to cause the freezing of water. 2. Also called hoarfrost. a covering of minute ice needles, formed from the atmosphere at night upon the ground and… … Universalium
Dew — For other uses, see Dew (disambiguation). Some dew on an iris in Sequoia National Park … Wikipedia
dew — dewless, adj. /dooh, dyooh/, n. 1. moisture condensed from the atmosphere, esp. at night, and deposited in the form of small drops upon any cool surface. 2. something like or compared to such drops of moisture, as in purity, delicacy, or… … Universalium
