The Collaborative International Dictionary
Hydrometeor
Hydrometeor \Hy`dro*me"te*or\, n. [Hydro-, 1 + meteor.]
A meteor or atmospheric phenomenon dependent upon the vapor
of water; -- in the pl., a general term for the whole aqueous
phenomena of the atmosphere, as rain, snow, hail, etc.
--Nichol.
Wiktionary
hydrometeor
n. rain, snow and other precipitation products of the condensation of atmospheric water vapour