Dictionary entry

Rabdology

Webster's Dictionary 1913

Rab‐dol″o‐gy (–dŏl″ō̍‐jy̆), n. [Gr. ρἅβδοσ rod, stick + -logy: cf. F. rabdologie.] The method or art of performing arithmetical operations by means of Napier's bones. See Napier's bones. [Written also rhabdology.]