vernal equinox
vernal equinox — noun
1. the moment in spring when the sun passes over the equator from south to north, m
the moment in spring when the sun passes over the equator from south to north, making day and night almost exactly twelve hours long across the whole Earth — this event marks the official start of spring in the northern half of the world.
In Japan, the vernal equinox is a national holiday for honoring one's ancestors.
cultural usage: national holiday in Japan
Elise marked the vernal equinox on her calendar because she wanted to plant her garden that weekend.
The astronomy club gathered at dawn to observe the vernal equinox from the university observatory.
Ancient builders designed many temples to align with the sunrise on the vernal equinox.
Deepak learned that the vernal equinox in the northern hemisphere is the autumnal equinox in the south.
- spring equinox
less formal; the everyday term used in weather reports and general conversation
- March equinox
Northern-Hemisphere-specific; avoids the formal/literary tone of 'vernal'
- autumnal equinox
marks the start of autumn, with day and night of equal length
文法句型
the vernal equinox