The noun curl has 3 senses (no senses from tagged texts)
1. coil, whorl, roll, curl, curlicue, ringlet, gyre, scroll -- (a round shape formed by a series of concentric circles (as formed by leaves or flower petals))
2. Curl, Robert Curl, Robert F. Curl, Robert Floyd Curl Jr. -- (American chemist who with Richard Smalley and Harold Kroto discovered fullerenes and opened a new branch of chemistry (born in 1933))
3. lock, curl, ringlet, whorl -- (a strand or cluster of hair)
Overview of verb curl
The verb curl has 5 senses (first 4 from tagged texts)
1. (3) curl, curve, kink -- (form a curl, curve, or kink; "the cigar smoke curled up at the ceiling")
2. (2) curl up, curl, draw in -- (shape one's body into a curl; "She curled farther down under the covers"; "She fell and drew in")
3. (2) coil, loop, curl -- (wind around something in coils or loops)
4. (1) curl, wave -- (twist or roll into coils or ringlets; "curl my hair, please")