The scientific study of vapor, steam, and atmospheric phenomena; the branch of knowledge dealing with the physical properties of vapors and their effects.
From Greek atmis (vapor) + -logy (study, science), combining to mean 'the study of vapor.' Emerged as a formal scientific discipline in the 18th-19th centuries.
Atmology is essentially dead as a discipline—it got absorbed into meteorology and thermodynamics—but for about 200 years, atmology was a legit field where scientists wrote serious papers about vapors and their mysteries!
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