# trigonometry

[ trig-uh-nom-i-tree ]

/ ˌtrɪg əˈnɒm ɪ tri /

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### noun

the branch of mathematics that deals with the relations between the sides and angles of plane or spherical triangles, and the calculations based on them.

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## British Dictionary definitions for trigonometry

trigonometry

/ (ˌtrɪɡəˈnɒmɪtrɪ) /

### noun

the branch of mathematics concerned with the properties of trigonometric functions and their application to the determination of the angles and sides of triangles. Used in surveying, navigation, etcAbbreviation: trig

## Derived forms of trigonometry

trigonometric (ˌtrɪɡənəˈmɛtrɪk) or trigonometrical, adjectivetrigonometrically, adverb## Word Origin for trigonometry

C17: from New Latin trigōnometria from Greek trigōnon triangle

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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## Scientific definitions for trigonometry

trigonometry

[ trĭg′ə-nŏm′ĭ-trē ]

The study of the properties and uses of trigonometric functions.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.