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# trigonometry

[trig-uh-nom-i-tree] /ˌtrɪg əˈnɒm ɪ tri/
noun
1.
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.
Origin of trigonometry
1605-1615
1605-15; < New Latin trigōnometria; see trigon, -o-, -metry
Related forms
trigonometric
[trig-uh-nuh-me-trik] /ˌtrɪg ə nəˈmɛ trɪk/ (Show IPA),
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for untrigonometric

## trigonometry

/ˌtrɪɡəˈnɒmɪtrɪ/
noun
1.
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, etc trig
Derived Forms
Word Origin
C17: from New Latin trigōnometria from Greek trigōnon triangle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for untrigonometric

## trigonometry

n.

"branch of mathematics that deals with relations between sides and angles of triangles," 1610s, from Modern Latin trigonometria (Barthelemi Pitiscus, 1595), from Greek trigonon "triangle" (from tri- "three," see tri-, + gonia "angle," see knee (n.)) + metron "a measure" (see meter (n.2)).

Online Etymology Dictionary, © 2010 Douglas Harper
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untrigonometric in Science
 trigonometry   (trĭg'ə-nŏm'ĭ-trē)    The study of the properties and uses of trigonometric functions.
The American Heritage® Science Dictionary
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### Difficulty index for trigonometry

Few English speakers likely know this word

### Word Value for untrigonometric

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