equinoctial
1 of 2adjective
equi·noc·tial ˌē-kwə-ˈnäk-shəl 
ˌe-
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
equinoctial
2 of 2noun
1
: equator sense 1
2
: an equinoctial storm
Example Sentences
Recent Examples on the Web
National Geographic, 20 Mar. 2018 Post-equinoctial 90s qualify as unusual in Philly Anthony R. Wood, Philly.com, 26 Sep. 2017 The inner bark of that red willow is the main ingredient used to make tobacco for the equinoctial Sacred Pipe ceremony, which is meant to rekindle the sacred fire of life on Earth. National Geographic, 17 Mar. 2016
Adjective
The inner bark of that red willow is the main ingredient used to make tobacco for the equinoctial Sacred Pipe ceremony, which is meant to rekindle the sacred fire of life on Earth. National Geographic, 20 Mar. 2018 Post-equinoctial 90s qualify as unusual in Philly Anthony R. Wood, Philly.com, 26 Sep. 2017 The inner bark of that red willow is the main ingredient used to make tobacco for the equinoctial Sacred Pipe ceremony, which is meant to rekindle the sacred fire of life on Earth. National Geographic, 17 Mar. 2016 Word History
First Known Use
Adjective
1545, in the meaning defined at sense 1
Noun
1521, in the meaning defined at sense 1