whorl

Etymology

From alteration of whirl (verb).

noun

1. Each circle, volution or equivalent in a pattern of concentric circles, ovals, arcs, or a spiral.
2. (botany) A circle of three or more leaves, flowers, or other organs, about the same part or joint of a stem.
3. (zoology) A volution, or turn, of the spire of a univalve shell.
4. (anatomy) Any volution, as for example in the human ear or fingerprint.
5. A flywheel, a weight attached to a spindle.

verb

1. (intransitive) To form a pattern of concentric circles.
   “Waves Against the Sand,” to music by Martinu, which opened the program, filled the stage space with whorling patterns of dancers surging with the gentle but ceaseless momentum of the sea. February 12, 2008, Jennifer Dunning, “Modern Style, Old-Fashioned Virtues”, in New York Times