IPA: /ˈdaʊnˌwɒʃ/
KK: /ˈdaʊnˌwɑʃ/
The downward movement of air caused by the action of a propeller or jet, often seen with helicopters or airplanes.
The helicopter's downwash created a strong breeze on the ground.
Downwash → The word is formed from "down" (from Old English "dūn", meaning downward or lower) and "wash" (from Old English "wæscan", meaning to wash or flow). The term "downwash" refers to the downward flow of air, particularly in the context of aerodynamics.
Think of air flowing 'downward' ('down') and 'washing' over surfaces ('wash') — that's what downwash describes.