A spiral motion of fluid within a limited area, especially a whirling mass of water or air that sucks everything near it toward its center. 漩渦在一定地域內液體的螺旋狀運動,尤指把附近各種東西吸向其中心的螺旋水流或空氣
A circular or spiral motion, especially a circular ocean current. 游渦一種圓形或螺旋形的運動,特別是做圓環運動的海水水流