Reduced visibility in the air as a result of condensed water vapour, dust, etc., in the atmosphere.
(Source: CED)
Meteorologic phenomenon consisting of a big number of dry and extremely small particles (dust, sand, smoke) in suspension and carried by the air, so that visibility is considerably reduced (aprox. between 1 and 5 kms). It occurs when the relative humidity is below 70-80%. It has an opalescent color.
confusion characterized by lack of clarity
atmospheric moisture or dust or smoke that causes reduced visibility
harass by imposing humiliating or painful tasks, as in military institutions