n.
Pronunciation: ˌ ē -kw ə - ' näk-sh ə l, ˌ e-
Function: adjective
Date: 1545
1 : relating to an equinox or to a state or the time of equal day and night
2 : relating to the regions or climate on or near the equator
3 : relating to the time when the sun passes an equinoctial point