UK [ˈkəʊˌsaɪn] / US [ˈkoʊˌsaɪn] noun [countable]
Word forms "cosine":
singular cosine plural cosines maths
in a right-angled triangle, the measurement of an acute angle that is equal to the length of the side between the angle and the right angle divided by the length of the hypotenuse

English dictionary. 2014.

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  • cosine — [kō′sīn΄] n. [ModL < co. sinus, short for complementi sinus, lit., sine of the complement] Trigonometry the reciprocal of the secant; specif. a) the ratio of the adjacent side of a given acute angle in a right triangle to the hypotenuse: see… …   English World dictionary

  • Cosine — Co sine (k? s?n), n. [For co. sinus, an abbrev. of L. complementi sinus.] (Trig.) The sine of the complement of an arc or angle. See Illust. of {Functions}. [1913 Webster] …   The Collaborative International Dictionary of English

  • cosine — 1630s, from co. sinus, abbreviation of M.L. complementi sinus (see COMPLEMENT (Cf. complement) + SINE (Cf. sine)) …   Etymology dictionary

  • COSINE — (Cooperation for OSI In Europe) co·sine || kəʊsaɪn European program to increase use of open communications networks in order to connect between European research organizations …   English contemporary dictionary

  • cosine — ► NOUN Mathematics ▪ (in a right angled triangle) the ratio of the side adjacent to a particular acute angle to the hypotenuse …   English terms dictionary

  • cosine — noun Etymology: New Latin cosinus, from co + Medieval Latin sinus sine Date: 1635 1. a trigonometric function that for an acute angle is the ratio between the leg adjacent to the angle when it is considered part of a right triangle and the… …   New Collegiate Dictionary

  • cosine — /koh suyn/, n. 1. Trigonom. a. (in a right triangle) the ratio of the side adjacent to a given angle to the hypotenuse. b. the sine of the complement of a given angle or arc. Abbr.: cos 2. Math. (of a real or complex number x) the function cos x… …   Universalium

  • cosine — noun /ˈkəʊ.saɪn,ˈkoʊ.saɪn/ a) In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos <!These definitions are equivalent to the one above and so do not …   Wiktionary

  • COSINE — Cooperation for OSI Networking in Europe (Computing » General) …   Abbreviations dictionary

  • COSINE — EUREKA Projekt EU 8 Cooperation for Open Systems Interconnection Networking in Europe Vernetzung von Rechenanlagen von Hochschulen sowie von staatlichen und industriellen Forschungseinrichtungen mittels öffentlicher Fernmeldenetze unter… …   Acronyms