triangulation(redirected from E911)
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a. A surveying technique in which a region is divided into a series of triangular elements based on a line of known length so that accurate measurements of distances and directions may be made by the application of trigonometry.
b. The network of triangles so laid out.
2. The location of an unknown point, as in navigation, by the formation of a triangle having the unknown point and two known points as the vertices.
3. The establishment of a political position that differs from two existing or opposing positions, especially in being moderate.
1. (Surveying) a method of surveying in which an area is divided into triangles, one side (the base line) and all angles of which are measured and the lengths of the other lines calculated trigonometrically
2. (Surveying) the network of triangles so formed
3. (Navigation) the fixing of an unknown point, as in navigation, by making it one vertex of a triangle, the other two being known
4. (Chess & Draughts) chess a key manoeuvre in the endgame in which the king moves thrice in a triangular path to leave the opposing king with the move and at a disadvantage
tri•an•gu•la•tion(traɪˌæŋ gyəˈleɪ ʃən)
1. a technique for establishing the distance between any two points, or the relative position of two or more points, by calculations based on the vertices of a triangle and the length of side of measurable length (base or baseline).
2. the triangles thus formed and measured.
1. A method used to determine distances and directions of a region of land. The region is divided into a set of triangles based on a line of known length. The triangles are then measured using trigonometry.
2. A method of determining the location of a boat or aircraft by means of trigonometry.
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|Noun||1.||triangulation - a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation|
|2.||triangulation - a method of surveying; the area is divided into triangles and the length of one side and its angles with the other two are measured, then the lengths of the other sides can be calculated|
surveying - the practice of measuring angles and distances on the ground so that they can be accurately plotted on a map; "he studied surveying at college"