noun. A precipitation product, such as rain, snow, fog, or clouds, formed from the condensation of water vapor in the atmosphere.

noun. A meteor or atmospheric phenomenon dependent upon the vapor of water; in the plural, all the aqueous phenomena of the atmosphere, as rain, hail, snow, etc.

noun. 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.

noun. Rain, snow and other precipitation products of the condensation of atmospheric water vapour

"Scaling the microphysics equations and analyzing the variability of hydrometeor production rates in a controlled parameter space."

lithometeor