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Synonyms

trigonometry

American  
[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.


trigonometry British  
/ ˌtrɪɡəˈnɒmɪtrɪ, ˌtrɪɡənəˈmɛtrɪk /

noun

  1.  trig.  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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

trigonometry Scientific  
/ trĭg′ə-nŏmĭ-trē /
  1. The study of the properties and uses of trigonometric functions.


Other Word Forms

  • nontrigonometric adjective
  • nontrigonometrical adjective
  • nontrigonometrically adverb
  • trigonometric adjective
  • trigonometrical adjective
  • trigonometrically adverb
  • untrigonometric adjective
  • untrigonometrical adjective
  • untrigonometrically adverb

Etymology

Origin of trigonometry

1605–15; < New Latin trigōnometria; trigon, -o-, -metry

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“You were never going to teach a first grader a trigonometry lesson, right?” she said.

From Seattle Times

When students fell behind in areas like algebra, gaps could go unnoticed for a year or more as they moved to subjects such as geometry or trigonometry.

From Seattle Times

"I have lost count of the number of people who say they wish they had learnt about mortgages rather than trigonometry," she said.

From BBC

Two high school students have proved the Pythagorean theorem in a way that one early 20th-century mathematician thought was impossible: using trigonometry.

From Scientific American

He recalled an image of her empty desk in trigonometry class the Monday morning after her disappearance.

From Seattle Times