# parallelogram

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 two sides of a parallelogram meeting at that point, their resultant is represented by the diagonal drawn from that point.
2 this theorem.
Etymology: F paralleacutelogramme f. LL parallelogrammum f. Gk parallelogrammon (as PARALLEL, gramme line)

Useful english dictionary. 2012.

### Look at other dictionaries:

• 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 …   The Collaborative International Dictionary of English

• 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 — 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