n. the branch of meteorology that studies the occurrence, movement and changes of state of water in the atmosphere
the GNU version of the Collaborative International Dictionary of English
n. That branch of meteorology which relates to, or treats of, water in the atmosphere, or its phenomena, as rain, clouds, snow, hail, storms, etc.
The Century Dictionary and Cyclopedia
n. That branch of meteorology which is concerned with water in the atmosphere in the form of rain, clouds, snow, hail, etc.
Word Usage
"Since 1974, during 5 years, was working in the West sector of the Arctic as a head of the Amderminsk Administration of hydrometeorology and environment control."