Is “Downwash” a Scrabble word?
Yes
DOWNWASH
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Downwash
noun
1.Downward air turbulence caused by a propeller or jet, but especially by helicopter blades
2.The downward motion of air as a result of eddies behind a wing or chimney, etc.