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From psychro- (prefix meaning ‘cold’) + -metry (suffix forming nouns relating to measures and measurement), modelled after psychrometer.
Etymology from Wiktionary, CC BY-SA 4.0.
psychrometry
psy·chro·met·ryToday it means: Synonym of psychrometrics (“the measurement or study of the physical and thermodynamic properties of the atmosphere and its water vapour”). Full definition →