water smoke (watersmok)

Water evaporating in the visible form of fog or mist: a phe no men on that occurs when the temperature of water-surfaces is above the dew-point of the air, and the air is already saturated with moisture. Water-smoke is frequently observed over rivers or other bodies of water after a sudden fall of temperature, when, in popular language, it is said "the river steams," and in damp weather over water-covered surfaces which are much warmer than the air, and is also seen frequently in arctic regions. We had not been able to get the dogs out when the big moon appeared above the water -smoke. Kane, Sec. Grinnell Exp., II. 32.