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.
在春分秋分期間，太陽直射赤道，造成晝夜相等。
translation
春分