noun
unstable flow of a liquid or gas
• Syn: ↑turbulence
• Derivationally related forms: ↑turbulent, ↑turbulent (for: ↑turbulence)
• Hypernyms: ↑physical phenomenon
• Hyponyms: ↑rip, ↑riptide, ↑tide rip, ↑crosscurrent, ↑countercurrent
Useful english dictionary. 2012.