arithmetic
[əˈɹɪθmətɪk] noun, adjective
Forms arithmetics arsmetrike arsmetryke arithmetike
- noun The mathematics of numbers (integers, rational numbers, real numbers, or complex numbers) under the operations of addition, subtraction, multiplication, and division.
- noun (dated) Number theory.
- adjective Increasing or decreasing by an arithmetic progression. “Growth in the most mature markets is likely to be arithmetic; on what rational basis could one hope for exponential growth there?”
- adjective (mathematics) Of, relating to, or using arithmetic; arithmetical. “arithmetic geometry”
- adjective (arithmetic) Of a progression, mean, etc, computed solely using addition. “arithmetic progression”
Synonyms
Etymology
From Middle English arsmetike, from Old French arismetique, from Latin arithmētica, from Ancient Greek ἀριθμητική (τέχνη) (arithmētikḗ (tékhnē), “(art of) counting”), feminine of ἀριθμητικός (arithmētikós, “arithmetical”), from ἀριθμός (arithmós, “number, counting”), from Proto-Indo-European *h₂ri-dʰh₁-mó-s, form of *h₂rey- (“to count, reason”). Used in English since 13th century.
From French arithmétique, from Latin arithmēticus, from Ancient Greek ἀριθμητῐκός (arithmētĭkós).
Webster’s 1913
- noun The science of numbers; the art of computation by figures.
- noun A book containing the principles of this science. Arithmetic of sines, trigonometry.
Etymology [OE. arsmetike, OF. arismetique, L. arithmetica, fr. Gr. arm, the idea of counting coming from that of fitting, attaching. See Arm. The modern Eng. and French forms are accommodated to the Greek.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “arithmetic”, CC BY-SA 4.0. Details