curl

中文： 卷发、弯曲、旋转、卷曲运动

1. A curving piece or lock of hair; a ringlet. · My hair doesn't have much curl.
2. A curved stroke or shape.
3. A spin making the trajectory of an object curve.
4. Movement of a moving rock away from a straight line.
5. Any exercise performed by bending the arm, wrist, or leg on the exertion against resistance, especially those that train the biceps.
6. The vector field denoting the rotationality of a given vector field.
7. The vector operator, denoted rm curl; or ⃑∇×⃑(·), that generates this field.
8. Any of various diseases of plants causing the leaves or shoots to curl up; often specifically the potato curl. (uncountable)

复数 curls