Belonging to summer; the solstitial point whereby the sun's ascent above the equator is determined.
"The Sailor's Word-Book" by William Henry Smyth
The Solstitial Points, or Solstices, are points of the Ecliptic at a distance of 90 deg.
"Lectures in Navigation" by Ernest Gallaudet Draper
They will arrive at the next solstitial feast.
"A Struggle for Rome, v. 1" by Felix Dahn
The first was an equinoctial, the second a solstitial armilla.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5" by Various
Now the townsmen are all out of doors on account of the solstitial holiday.
"The Complete Opera Book" by Gustav Kobbé