Arithmetic

• POS: Adjective, Noun
• HYPHEN: a=rith=me=tic

CIDE DICTIONARY

Arithmetic, n. [OE. arsmetike, OF. arismetique, L. arithmetica, fr. Gr. (sc. ), fr. arithmetical, fr. to number, fr. 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.].

•  The science of numbers; the art of computation by figures.  [1913 Webster]
•  A book containing the principles of this science.  [1913 Webster]

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.

OXFORD DICTIONARY

Arithmetic, n. & adj.
--n.
1 a the science of numbers. b one's knowledge of this (have improved my arithmetic).
2 the use of numbers; computation (a problem involving arithmetic).
--adj. (also arithmetical) of or concerning arithmetic.

Idiom

arithmetic mean the central number in an arithmetic progression. arithmetic progression
1 an increase or decrease by a constant quantity (e.g. 1, 2, 3, 4, etc., 9, 7, 5, 3, etc.).
2 a sequence of numbers showing this.

Derivative

arithmetician n.

Etymology

ME f. OF arismetique f. L arithmetica f. Gk arithmetike (tekhne) art of counting f. arithmos number

THESAURUS

Arithmetic

Boolean algebra, Euclidean geometry, Fourier analysis, Lagrangian function, algebra, algebraic geometry, analysis, analytic geometry, associative algebra, binary arithmetic, calculation, calculus, ciphering, circle geometry, descriptive geometry, differential calculus, division algebra, equivalent algebras, estimation, figuring, game theory, geodesy, geometry, graphic algebra, group theory, higher algebra, higher arithmetic, hyperbolic geometry, infinitesimal calculus, integral calculus, intuitional geometry, invariant subalgebra, inverse geometry, line geometry, linear algebra, mathematical physics, matrix algebra, metageometry, modular arithmetic, n-tuple linear algebra, natural geometry, nilpotent algebra, number theory, plane trigonometry, political arithmetic, projective geometry, proper subalgebra, quaternian algebra, reckoning, reducible algebra, set theory, simple algebra, solid geometry, speculative geometry, spherical trigonometry, statistics, subalgebra, systems analysis, topology, trig, trigonometry, universal algebra, universal geometry, vector algebra, zero algebra

ROGET THESAURUS

Arithmetic

Numeration

N numeration, numbering, pagination, tale, recension, enumeration, summation, reckoning, computation, supputation, calculation, calculus, algorithm, algorism, rhabdology, dactylonomy, measurement, statistics, arithmetic, analysis, algebra, geometry, analytical geometry, fluxions, differential calculus, integral calculus, infinitesimal calculus, calculus of differences, dead reckoning, muster, poll, census, capitation, roll call, recapitulation, account, notation, addition, subtraction, multiplication, division, rule of three, practice, equations, extraction of roots, reduction, involution, evolution, estimation, approximation, interpolation, differentiation, integration, abacus, logometer, slide rule, slipstick, tallies, Napier's bones, calculating machine, difference engine, suan- pan, adding machine, cash register, electronic calculator, calculator, computer, arithmetician, calculator, abacist, algebraist, mathematician, statistician, geometer, programmer, accountant, auditor, numeral, numerical, arithmetical, analytic, algebraic, statistical, numerable, computable, calculable, commensurable, commensurate, incommensurable, incommensurate, innumerable, unfathomable, infinite, quantitatively, arithmetically, measurably, in numbers.