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The Collaborative International Dictionary
Circination

Circination \Cir`ci*na"tion\, n. [L. circinatio circle.]

  1. An orbicular motion. [Obs.]
    --bailey.

  2. A circle; a concentric layer. [Obs.] ``The circinations and spherical rounds of onions.''
    --Sir T. Browne.

Wiktionary
circination

n. 1 (context obsolete English) A circling motion, a rotation. 2 (context botany English) A circular growth or foliation.