mist

in atmospheric chemistry
https://doi.org/10.1351/goldbook.M03936
A qualitative term applied to a @S06198@ of droplets in a gas. In the atmosphere a mist produces a generally thin, greyish veil over the landscape. It reduces visibility to a lesser extent than @F02470@ but somewhat more than haze (visibility of less than $$2\ \text{km}$$ but greater than $$1\ \text{km}$$).
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2202 [Terms] [Paper]