Webster’s Revised Unabridged Dictionary · 1913
Arithmometer
Ar′ith·mom′e·ter, n. [Gr. ἀριθμός number + -meter: cf. F. arithmomètre.] A calculating machine.
Webster’s Revised Unabridged Dictionary · 1913
Ar′ith·mom′e·ter, n. [Gr. ἀριθμός number + -meter: cf. F. arithmomètre.] A calculating machine.