/sleet/ , n.
1. precipitation in the form of ice pellets created by the freezing of rain as it falls (distinguished from hail ).
2. glaze (def. 17).
3. Chiefly Brit. a mixture of rain and snow.
v.i.
4. to send down sleet.
5. to fall as or like sleet.
[ 1250-1300; (n.) ME slete; akin to LG slote, G Schlossen hail; (v.) ME sleten, deriv. of the n. ]