† equiˈnoctional,a. [as if f. L. *æquinoctiōn-em(seeprec.) + -al1.] = equinoctial. Hence equiˈnoctionallyadv., in the direction of the equinoctial. 1658Sir T. Browne Hydriot. & Gard. Cyrus 61 The floure twists æquinoctionally from the left hand to the right, according to the dayly revolution.