Solstitial
Pronunciation : Sol*sti"tial
Part of Speech : a.
Etymology : [L. solstitialis: cf. F. solsticial.]
Definition : 1. Of or pertaining to a solstice.
2. Happening at a solstice; esp. (with reference to the northern hemisphere), happening at the summer solstice, or midsummer. "Solstitial summer's heat." Milton.
Source : Webster's Unabridged Dictionary, 1913