The Collaborative International Dictionary
Quincuncially
Quincuncially \Quin*cun"cial*ly\, adv. In the manner or order of a quincunx.
Wiktionary
quincuncially
adv. In a quincuncial fashion. alt. In a quincuncial fashion.
Usage examples of "quincuncially".
For making the angle of incidence equal to that of reflection, the visuall raye returneth Quincuncially, and after the form of a V, and the line of reflection being continued unto the place of vision, there ariseth a semi-decussation, which makes the object seen in a perpendicular unto itself, and as farre below the reflectent, as it is from it above.