Alternative spelling of downdraft.

What is the meaning of Downdraught?

1 : a downward current of gas (such as air during a thunderstorm) 2 : decline sense 1 an economic downdraft.

What do you mean by turbulence?

: the quality or state of being turbulent: such as. a : great commotion or agitation emotional turbulence. b : irregular atmospheric motion especially when characterized by up-and-down currents. c : departure in a fluid from a smooth flow.