Meaning

noun predicting what the weather will be

noun the earth science dealing with phenomena of the atmosphere (especially weather)

originLearned borrowing from Ancient Greek μετεωρολογία (meteōrología), from μετέωρα (metéōra, “celestial phenomena”), nominalized from the neuter plural of μετέωρος (metéōros, “high in the sky”), + -λογία (-logía, “study of”). By surface analysis, meteor (“atmospheric phenomenon”) + -ology (“study of”). First attested in 1563.

Etymology from Wiktionary, CC BY-SA 3.0