Oryctognosy \Or`yc*tog"no*sy\, n. [Gr. 'orykto`s dug (? to dig) + gnw^sis knowledge.] Mineralogy. [Obs.] -- {Or`yc*tog*nos"tic}, a. -- {Or`yc*tog*nos"tic*al}, a. [Obs.] -- {Or`yc*tog*nos"tic*al*ly}, adv. [Obs.] [1913 Webster]