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Meaning of solstitial

sol•sti•tial

Pronunciation: (sol-stish'ul, sōl-), [key]
— adj.
  1. of or pertaining to a solstice or the solstices: a solstitial point.
  2. occurring at or about the time of a solstice.
  3. characteristic of the summer solstice.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.