Definition of "solstitial"

[…] Fig. 2 is taken as being in the solstitial meridian plane N W S E, with the node D in front at the centre of the figure, and the node V behind the figure, D C V being the nodal diameter of the Earth, and W C E a solstitial diameter rectangular to D C V.

1903, John Jones, A kinetic universe, page 51

Gaillard had tried to show that the avenues had a solstitial orientation.

2000, Peter Lancaster Brown, Megaliths, Myths and Men: An Introduction to Astro-Archaeology, page 214

[…] the moment of his birth, the solstitial moon is to be full, […]

1827, “The Correspondent”, in (Please provide the book title or journal name)‎, volume 1, page 182