"Air turbulence" refers to sudden, unsteady movements or changes in the air during flight. It can cause the airplane to shake or feel bumpy. Full definition
A spoiler lip that reduces air turbulence was styled into the top of the trunk lid; it further improves the car's remarkable aerodynamics. (ausmotive.com)
New research predicts that severe clear air turbulence in the stratosphere could increase by 149 % because of climate change. (climatenewsnetwork.net)
Other researchers have warned more than once that as temperatures rise, so will the challenge of clear air turbulence. (climatenewsnetwork.net)