(1) A form of precipitation consisting of frozen raindrops cooled to the ice stage while falling through air at subfreezing temperatures. (2) A mixture of rain and snow or hail. (3) A thin icy coating that forms when rain or sleet freezes, as on trees or streets.
SLEET
Meaning of SLEET in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012