wash out 

in atmospheric chemistry
https://doi.org/10.1351/goldbook.W06655
The removal from the @A00491@ of gases and sometimes particles by their solution in or @A00512@ to raindrops as they fall.
See also: rain out (in atmospheric chemistry)
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2219 [Terms] [Paper]
Citation: 'wash out' 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.W06655 RIS BibTex EndNote
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Last revised: February 24, 2014