Definitions
1.nounA piece or lock of curling hair; a ringlet.
2.nounA curved stroke or shape.
3.nounA spin making the trajectory of an object curve.
4.nounMovement of a moving rock away from a straight line.
5.nounAny exercise performed by bending the arm, wrist, or leg on the exertion against resistance, especially those that train the biceps.
6.nounThe vector field denoting the rotationality of a given vector field."The curl of the vector field \vec{F}(x,y,z) is the vector field \operatorname{curl}\,\vec{F} \equiv \vec{\nabla}\times\vec{F}=\left( \frac{\partial F_z}{\partial y} - \frac{\partial F_y}{\partial z}, \frac{\partial F_x}{\partial z} - \frac{\partial F_z}{\partial x}, \frac{\partial F_y}{\partial x} - \frac{\partial F_x}{\partial y} \right)."
7.noun(proper noun) The vector operator, denoted \rm{curl}\; or \vec{\nabla}\times\vec{\left(\cdot\right)}, that generates this field.
8.nounAny of various diseases of plants causing the leaves or shoots to curl up; often specifically the potato curl.
9.nounThe contrasting light and dark figure seen in wood used for stringed instrument making; the flame."The one-piece back is of a medium curl."
10.nounA pattern where the receiver appears to be running a fly pattern but after a set number of steps or yards quickly stops and turns around, looking for a pass.
11.verbTo cause to move in a curve.
12.verbTo make into a curl or spiral.
13.verbTo assume the shape of a curl or spiral.
14.verbTo move in curves.
15.verbTo take part in the sport of curling."I curl at my local club every weekend."
16.verbTo exercise by bending the arm, wrist, or leg on the exertion against resistance, especially of the biceps.
17.verbTo twist or form (the hair, etc.) into ringlets.
18.verbTo deck with, or as if with, curls; to ornament.
19.verbTo raise in waves or undulations; to ripple.
20.verb(hat-making) To shape (the brim of a hat) into a curve.