solstitian,a.|sɒlˈstɪʃən| Also 7 solstician. [f. L. sōlstiti-um + -an.] Solstitial. 1614J. Taylor (Water P.) Nipping Abuses E 2 b, Sol..High mounted in his chiefe solstician pride.1845Theologian II. 37 Capricornus..is an earthy,..moveable,..solstitian,..quadrupedal sign.