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Definition of trigonometry

trigonometry

/ˌtrɪɡ.əˈnɑː.mə.tri/
trig · o · nom · e · try
Adverb:trigonometrically
•
Plural:trigonometries
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Adjective:trigonometric
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trigonometry Lexical Profile

trigonometry Game Scores & Validity

• noun

1

The branch of mathematics dealing with the relations between the sides and angles of triangles and with the relevant functions of any angles.

Example

"Architects and surveyors rely on trigonometry to calculate the precise height of tall structures from a distance."

Synonyms
View all synonyms for trigonometry

• Rhymes for trigonometry

• Nearby Words

triggerman
triglav
trigonometric
trigonometry
trike
trilateral
trilby

Word Origin & Etymology

Coined in Modern Latin as 'trigonometria' in 1595 by the German mathematician Bartholomaeus Pitiscus, from Ancient Greek 'trigonon' (triangle, literally 'three angles') and '-metria' (measurement).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Trigonometry. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/trigonometry
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