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Webster 1913 Edition
Arithmetic
A-rith′me-tic
,Noun.
[OE.
arsmetike
, OF. arismetique
, L. arithmetica
, fr. Gr. [GREEK] (sc. [GREEK]), fr. [GREEK] arithmetical, fr. [GREEK] to number, fr. [GREEK] number, prob. fr. same root as E. arm
, the idea of counting coming from that of fitting, attaching. See Arm
. The modern Eng. and French forms are accommodated to the Greek.] 1.
The science of numbers; the art of computation by figures.
2.
A book containing the principles of this science.
Arithmetic of sines
, trigonometry.
– Political arithmetic
, the application of the science of numbers to problems in civil government, political economy, and social science.
– Universal arithmetic
, the name given by Sir Isaac Newton to algebra.
Webster 1828 Edition
Arithmetic
ARITH'METIC
,Noun.
The science of numbers, or the art of computation. The various operations of arithmetic are performed by addition, subtraction, multiplication and division.