winter solstice

Noun
  1. December 22, when the sun is at its southernmost point (synset 115247986)
    is a type of: solstice - either of the two times of the year when the sun is at its greatest distance from the celestial equator
    is a part of: winter, wintertime - the coldest season of the year; in the northern hemisphere it extends from the winter solstice to the vernal equinox

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