/terr"byeuh leuhns/ , n.
1. the quality or state of being turbulent; violent disorder or commotion.
2. Hydraulics. the haphazard secondary motion caused by eddies within a moving fluid.
3. Meteorol. irregular motion of the atmosphere, as that indicated by gusts and lulls in the wind.
Also, turbulency .
[ 1590-1600; turbulentia. See TURBULENT, -ENCE ]