Parallelogram Par`al*lel"o*gram, n. [Gr. ?; ? parallel + ? to write: cf. F. parall['e]logramme. See {Parallel}, and {-gram}.] (Geom.) A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; -- sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles. [1913 Webster]

{Parallelogram of velocities}, {parallelogram of forces}, {parallelogram of accelerations}, {parallelogram of momenta}, etc. (Mech.), a parallelogram the diagonal of which represents the resultant of two velocities, forces, accelerations, momenta, etc., both in quantity and direction, when the velocities, forces, accelerations, momenta, etc., are represented in quantity and direction by the two adjacent sides of the parallelogram. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Parallelogram — (matematik) kaldes en firkant hvori hvert par modstående sider er parallelle. I et parallelogram er modstående sider lige tore, ligså modstående vinkler. Der er to diagonlaer, som halverer hinanden. To modstående siders afstand kaldes højde i et… …   Danske encyklopædi

  • parallelogram — (n.) 1560s, from Fr. parallélogramme (1550s), from L. parallelogrammum, from Gk. parallelogrammon bounded by parallel lines, from parallelos (see PARALLEL (Cf. parallel)) …   Etymology dictionary

  • parallelogram — ► NOUN ▪ a plane figure with four straight sides and opposite sides parallel …   English terms dictionary

  • parallelogram — [par΄ə lel′ə gram΄] n. [Fr parallélogramme < L parallelogrammum < Gr parallēlogrammon < parallēlos,PARALLEL + grammē, stroke in writing: see GRAM1] a plane figure with four sides, having the opposite sides parallel and equal: see… …   English World dictionary

  • Parallelogram — In geometry, a parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite angles of a parallelogram are congruent. The three dimensional counterpart of a… …   Wikipedia

  • parallelogram — n. Geom. a four sided plane rectilinear figure with opposite sides parallel. Phrases and idioms: parallelogram of forces 1 a parallelogram illustrating the theorem that if two forces acting at a point are represented in magnitude and direction by …   Useful english dictionary

  • parallelogram — UK [ˌpærəˈleləˌɡræm] / US [ˌperəˈleləˌɡræm] noun [countable] Word forms parallelogram : singular parallelogram plural parallelograms maths a shape with four straight sides in which opposite sides are of equal length and are parallel to each other …   English dictionary

  • parallelogram — [[t]pæ̱rəle̱ləgræm[/t]] parallelograms N COUNT A parallelogram is a four sided shape in which each side is parallel to the side opposite it …   English dictionary

  • parallelogram —    A four sided polygon, all opposite sides being parallel to each other. An equilateral parallelogram is called a rhombus. Also see geometric, mathematics, pantograph, parallelepiped, quadrilateral, rectangle, rhombohedron, square, trapezium,… …   Glossary of Art Terms

  • parallelogram — lygiagretainis statusas T sritis fizika atitikmenys: angl. parallelogram vok. Parallelogramm, n rus. параллелограмм, m pranc. parallélogramme, m …   Fizikos terminų žodynas

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