whorl

(noun) a round shape formed by a series of concentric circles (as formed by leaves or flower petals). Synonyms: coil, roll, curl, curlicue, ringlet, gyre, scroll.

(noun) a strand or cluster of hair. Synonyms: lock, curl, ringlet.

(noun) a structure consisting of something wound in a continuous series of loops. Synonyms: coil, spiral, volute, helix. Examples: "A coil of rope."