turbulence
TUR-byuh-luns
/ˈtɜː.bjə.ləns/
Violent or unsteady movement of air or water, or a state of confusion and disorder.
In flight contexts, refers to irregular atmospheric air currents causing rapid jolts or vertical changes in flight path.
The story behind the word. Originates from Latin 'turbulentia', built on 'turba' (meaning crowd, disorder, or commotion — root of 'disturb' and 'turbid'). It originally described chaotic mob behavior before fluid dynamicists applied it to chaotic, non-laminar air and water movements.
Word relationships
- instability: Instability refers to a prone-to-change state, whereas turbulence describes active violent shaking or fluid motion.
- commotion: Commotion refers to social noise or disruption, not atmospheric fluid disturbance.
- calm: State of peace and stillness.
- laminar flow: Smooth, uninterrupted fluid or air movement.
Commonly confused with
- Turbidity: Turbidity describes cloudiness or murkiness in liquids, whereas turbulence describes violent chaotic fluid motion.
Word family
- turbulent (adjective): Characterized by conflict, disorder, or turmoil; unstable air or water.
Collocations
- severe turbulence
- clear-air turbulence
- encounter turbulence
- unexpected turbulence
Example sentences
- "The captain illuminated the seatbelt sign as the plane encountered severe clear-air turbulence over the Rockies." Flight Operations
- "Thermal updrafts and jet streams are common causes of high-altitude turbulence experienced by commercial liners." Atmospheric Science
Memory hook
TURBINE spinning violently in TURBULENCE. Chaotic air motion.
When not to use
Do not confuse with smooth laminar airflow or predictable head/tail winds.
Fun facts
- Clear-air turbulence (CAT) occurs in cloudless skies with zero radar warning, caused by colliding air masses at high altitude.
Explore more words
Disorder, upheaval, tempest, chaos, Fluctuation, disturbance
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