noun.
The science that deals with the phenomena of the atmosphere, especially weather and weather conditions.
The Century Dictionary and Cyclopedia
noun.
The science which treats of the motions and phenomena of the earth's atmosphere; the scientific study of weather and climate, their causes, changes, relations, and effects. Abbreviated meteorology
the GNU version of the Collaborative International Dictionary of English
noun.
The science which treats of the atmosphere and its phenomena, particularly of its variations of heat and moisture, of its winds, storms, etc.