Definitions of Curl:

• noun:   American chemist who with Richard Smalley and Harold Kroto discovered fullerenes and opened a new branch of chemistry (born in 1933)
• noun:   a strand or cluster of hair
• noun:   a round shape formed by a series of concentric circles
• verb:   form a curl, curve, or kink

  Example: "The cigar smoke curled up at the ceiling"

• verb:   play the Scottish game of curling
• verb:   twist or roll into coils or ringlets

  Example: "Curl my hair, please"

• verb:   shape one's body into a curl

  Example: "She curled farther down under the covers"

• verb:   wind around something in coils or loops
• name:  A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #6975)