Polar
Polar Po"lar, n. (Conic Sections) The right line drawn through the two points of contact of the two tangents drawn from a given point to a given conic section. The given point is called the pole of the line. If the given point lies within the curve so that the two tangents become imaginary, there is still a real polar line which does not meet the curve, but which possesses other properties of the polar. Thus the focus and directrix are pole and polar. There are also poles and polar curves to curves of higher degree than the second, and poles and polar planes to surfaces of the second degree. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • polar — polar …   Dictionnaire des rimes

  • Polar — Po lar, a. [Cf. F. polaire. See {Pole} of the earth.] 1. Of or pertaining to one of the poles of the earth, or of a sphere; situated near, or proceeding from, one of the poles; as, polar regions; polar seas; polar winds. [1913 Webster] 2. Of or… …   The Collaborative International Dictionary of English

  • Polar — Saltar a navegación, búsqueda El término polar hace alusión a los polos y puede referirse a: Aurora polar Círculo polar: Con los Círculo polar ártico y Círculo polar antártico Estrella polar Climatología Baja polar Ciclón polar Clima polar Noche… …   Wikipedia Español

  • polar — POLÁR, Ă, polari, e, adj., s.f. 1. adj. Privitor la cei doi poli1 ai Pământului, de la poli1, caracteristic polilor1; din regiunea sau din zona polilor1. ♢ Noapte polară = noapte de iarnă care se întâlneşte în regiunile situate dincolo de cercul… …   Dicționar Român

  • Polar — bezeichnet: umgangssprachlich die Lage zweier mehr oder weniger entgegengesetzt bzw. gegenüber gelegener Dinge, wie z. B. die Standpunkte in einem Gespräch, einer politischen Haltung oder Ähnlichem, siehe auch diametral in der Chemie und… …   Deutsch Wikipedia

  • polar — adj. Perteneciente o relativo a los polos. ☛ V. aurora polar, casquete polar, círculo polar, coordenada polar, forro polar, oso polar …   Diccionario de la lengua española

  • Polar — (Елливаре,Швеция) Категория отеля: Адрес: Hermelinsvägen 23, 982 36 Елливаре, Швеция …   Каталог отелей

  • polar — (adj.) 1550s, from M.L. polaris, from L. polus (see POLE (Cf. pole) (2)). Meaning directly opposite in character or tendency is attested from 1832. Polar bear first recorded 1781 …   Etymology dictionary

  • polar — [adj1] cold arctic, extreme, farthest, freezing, frigid, frozen, glacial, icy, north, south, terminal; concepts 583,605 Ant. tropic, tropical polar [adj2] opposite, opposed antagonistic, antipodal, antipodean, antithetical, contradictory,… …   New thesaurus

  • Polar... — Polar..., 1) die Pole betreffend; 2) an den Polen wohnend; 3) gerade entgegengesetzt …   Pierer's Universal-Lexikon

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”