Oryctognosy

Or′yc‐tog″no‐sy (?), n. [Gr. ορυκτὄσ dug (� to dig) + γνω̑σισ knowledge.] Mineralogy. — Or′yc‐tog‐nos″tic (#), a. — Or′yc‐tog‐nos″tic‐al (#), a. — Or′yc‐tog‐nos″tic‐al‐ly (#), adv.