Equinox

Parts of speech: Noun

The Source Sentence and (page Number): For twelve days after the equinox, people visited relatives and friends, always sstarting with the eldest."Funny in Farsi pg 106

Context Clues: Logic (Previously heard)

Definition: the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth and occurring about March 21 (vernal equinox or spring equinox) and September 22 (autumnal equinox).

Your Original Sentence: The scientists studied the equinox during the spring when it was less cold.