### Trigonometry Trigonometry (from Greek trigōnon, `triangle` and metron, `measure`) is a branch of mathematics that studies relationships involving lengths and angles of triangles. The field emerged during the 3rd century BC from applications of geometry to astronomical studies. The 3rd-century astronomers first noted that the lengths of the sides of a righ...
Found on http://en.wikipedia.org/wiki/Trigonometry

### Trigonometry • (n.) A treatise in this science. • (n.) 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.Trigonometry: words in t...
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### trigonometry trig noun the mathematics of triangles and trigonometric functions
Found on https://www.encyclo.co.uk/local/20974

### trigonometry Branch of mathematics that concerns finding lengths and angles in triangles. In a right-angled triangle the sides and angles are related by three trigonometric ratios: sine, cosine, and tangent. Trigonometry is used frequently in navigation, surveying, and simple harmonic motion in physics. U...
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### trigonometry Origin: Gr. A triangle + -metry: cf. F. Trigonometrie. See Trigon. ... 1. 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. �...
Found on http://www.encyclo.co.uk/local/20973

### trigonometry the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle ... [9 related articles]
Found on http://www.britannica.com/eb/a-z/t/80

### trigonometry The branch of mathematics that deals with the relationships between the sides and the angles of triangles and the calculations based on them, particularly the trigonometric functions. Sherlock Holmes relies on a little trigonometry to solve a 250-year-old mystery known as the Musgrave Ritual (in a s...
Found on http://www.daviddarling.info/encyclopedia/T/trigonometry.html

### Trigonometry Trigonometry is the branch of mathematics which treats of the relation of the sides and angles of triangles, with the methods of deducing from certain parts the parts required.
Found on http://www.probertencyclopaedia.com/browse/AT.HTM

### trigonometry trigonometry That branch of mathematics that deals with the measurement of the sides and angles of triangles, particularly with certain functions of their angles or of angles in general (the sine, cosine, tangent, cotangent, secant, and cosecant), and hence with these functions as applied to abstract quantities; thus including the theory of triangl...
Found on http://www.wordinfo.info/words/index/info/view_unit/2180/

### trigonometry trigonometry [Gr.,=measurement of triangles], a specialized area of geometry concerned with the properties of and relations among the parts of a triangle. Spherical trigonometry is concerned with the study of triangles on the surface of a sphere rather than in the plane; it is of considerable import... [n] - the mathematics of triangles and trigonometric functions