Term: hysteresis
https://doi.org/10.1351/goldbook.H02930

Definition:
Regarding a material quantity or instrument's reading; the dependence of a value on the direction of change from a previous characteristic value. It may be quantified by the difference between the upscale and downscale variation starting from fixed lower and upper measurement points (inversion).

Related Terms:
1) reading (http://doi.org/10.1351/goldbook.R05189).
2) inversion (http://doi.org/10.1351/goldbook.I03146).

Source: PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2196 (https://doi.org/10.1351/pac199062112167)

Citation: 'hysteresis' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.H02930

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