serpentinus

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

serpentīnus, a, um, adj. [serpens],

of or belonging to a serpent (eccl. Lat.): pectora, Ambros. in Luc. 2, 2, 51: serpentinos natos, Aug. Gen. contra Manich. 2, 26.