equinoctial
🇺🇸
/ˌiːkwɪˈnɑːkʃl/
🇬🇧
/ˌiːkwɪˈnɒkʃl/
adjective
R
relating to an equinox, when day and night are of equal length
During the equinoctial period, the sun shines directly on the equator, causing equal day and night.
在春分秋分期间，太阳直射赤道，造成昼夜相等。
translation
春分