Meaning of مثلث in English

A discourse or colloquy by three persons.
A figure bounded by three lines, and containing three angles.
An instrument of percussion, usually made of a rod of steel, bent into the form of a triangle, open at one angle, and sounded by being struck with a small metallic rod.
A draughtsman's square in the form of a right-angled triangle.
A kind of frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment, -- now disused.
A small constellation situated between Aries and Andromeda.
A small constellation near the South Pole, containing three bright stars.
Having three angles; triangular.
of Triangulate
The series or network of triangles into which the face of a country, or any portion of it, is divided in a trigonometrical survey; the operation of measuring the elements necessary to determine the triangles into which the country to be surveyed is supposed to be divided, and thus to fix the positions and distances of the several points connected by them.
Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles.
That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.
A treatise in this science.
A curtain rod for a bedstead.