Curl

verb (used with object)
1.
to form into coils or ringlets, as the hair.
2.
to form into a spiral or curved shape; coil.
3.
to adorn with, or as with, curls or ringlets.
verb (used without object)
4.
to grow in or form curls or ringlets, as the hair.
5.
to become curved or undulated.
6.
to coil.
7.
to play at the game of curling.
8.
to progress in a curving direction or path; move in a curving or spiraling way:
The ball curled toward the plate.
noun
9.
a coil or ringlet of hair.
10.
anything of a spiral or curved shape, as a lettuce leaf, wood shaving, etc.
11.
a coil.
12.
the act of curling or state of being curled.
13.
Plant Pathology.

the distortion, fluting, or puffing of a leaf, resulting from the unequal development of its two sides.
a disease so characterized.

14.
Also called rotation. Mathematics.

a vector obtained from a given vector by taking its cross product with the vector whose coordinates are the partial derivative operators with respect to each coordinate.
the operation that produces this vector.

15.
Weightlifting.

an underhand forearm lift in which the barbell, held against the thighs, is raised to the chest and then lowered while keeping the legs, upper arms, and shoulders taut.
a similar forearm lift using a dumbbell or dumbbells, usually from the side of the body to the shoulders.

Verb phrases
16.
curl up, to sit or lie down cozily:
to curl up with a good book.
Idioms
17.
curl one’s lip, to assume or display an expression of contempt:
He curled his lip in disdain.
18.
curl one’s / the hair, to fill with horror or fright; shock:
Some of his stories about sailing across the Atlantic are enough to curl one’s hair.
verb
1.
(intransitive) (esp of hair) to grow into curves or ringlets
2.
(transitive) sometimes foll by up. to twist or roll (something, esp hair) into coils or ringlets
3.
(often foll by up) to become or cause to become spiral-shaped or curved; coil: the heat made the leaves curl up
4.
(intransitive) to move in a curving or twisting manner
5.
(intransitive) to play the game of curling
6.
curl one’s lip, to show contempt, as by raising a corner of the lip
noun
7.
a curve or coil of hair
8.
a curved or spiral shape or mark, as in wood
9.
the act of curling or state of being curled
10.
any of various plant diseases characterized by curling of the leaves
11.
(maths) Also called rot, rotation. a vector quantity associated with a vector field that is the vector product of the operator ∇ and a vector function A, where ∇ = i∂/∂x + j∂/∂by + k∂/∂z,i, j, and k being unit vectors. Usually written curl A, rot A Compare divergence (sense 4), gradient (sense 4)