I.pertaining to the equinox, or the time of equal day and night, equinoctial: “circulus,” the equator, Varr. L. L. 9, § 24 Müll.: “aestus,” Sen. Q. N. 3, 28 (cf. aequinoctium fin.). horae, Plin. 2. 97. 99, § “216: meridies,” Col. 1, 6, 2.
aequĭnoctĭālis , e, adj. aequinoctium,