Entry 1 sense Webster, 1913 Gyratory /(jī"rȧ*tō̇*ry̆)/ · Gy·ra·to·ry · IPA /d͡ʒaɪˈɹeɪ.təɹ.i/ 01 a. Moving in a circle, or spirally; revolving; whirling around. 1. Moving in a circle, or spirally; revolving; whirling around.