Pronunciation: ( —n.u-rith'mu-tik; —adj.ar"ith-met'ik),[key] —n. 1. the method or process of computation with figures: the most elementary branch of mathematics.
2. Also called higher arithmetic, theoretical arithmetic. the theory of numbers; the study of the divisibility of whole numbers, the remainders after division, etc.
3. a book on this subject.
—adj. Also,ar"ith•met'i•cal.of or pertaining to arithmetic.