either of the two times of the year at which the sun reaches its highest or lowest point in the sky in the middle of the day, marked by the longest and shortest days 至（点）；（夏或冬）至 the summer/winter solstice 夏至；冬至
Oxford Collocations DictionarySolstice is used after these nouns:- summer
- winter
Word OriginMiddle English: from Old French, from Latin solstitium, from sol ‘sun’ + stit- ‘stopped, stationary’ (from the verb sistere).