# trigonometric

trig·​o·​no·​met·​ric
variants or less commonly trigonometrical
: of, relating to, or being in accordance with trigonometry

## Examples of trigonometric in a Sentence

Recent Examples on the Web Their work joins a handful of other trigonometric proofs that were added to the mathematical archives over the years. Leila Sloman, Scientific American, 10 Apr. 2023 Greek astronomers like Ptolemy made use of a hollow circle when calculating trigonometric figures, often adding a bar or line across the top. Nathaniel Scharping, Discover Magazine, 9 Jan. 2021 Bing can also convert currencies, deliver stock quotes, and even do trigonometric functions. PCMAG, 9 Feb. 2023 Perhaps the best historical analog for the gravitational wave search and detection is the search for the trigonometric parallax, or a method to measure the distance to stars. Jeffrey Wilkerson, Discover Magazine, 25 Feb. 2016 The room remained quiet until the teacher began yelling the word — usually used in reference to trigonometric functions — and jumping around the classroom. Washington Post, 22 Oct. 2021 In 1807, Joseph Fourier discovered that any periodic function — an equation whose values repeat cyclically — could be expressed as the sum of trigonometric functions like sine and cosine. Quanta Magazine, 13 Oct. 2021 It was well known by then that the goat problem could be reduced to a single transcendental equation, which by definition includes trigonometric terms like sine and cosine. Quanta Magazine, 9 Dec. 2020 The increase in the weight on the static axle provides the critical variable to solving a trigonometric equation that determines the height of the vehicle's center of gravity. Dave Vanderwerp, Car and Driver, 21 Aug. 2020 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'trigonometric.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

## Word History

First Known Use

1687, in the meaning defined above

Time Traveler
The first known use of trigonometric was in 1687

trigonometric

## Cite this Entry

“Trigonometric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trigonometric. Accessed 5 Dec. 2023.

## Kids Definition

trigonometric

trig·​o·​no·​met·​ric
variants also trigonometrical
: of, relating to, or involving trigonometry
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