spherical trigonometry

noun

: trigonometry applied to spherical triangles and polygons

Word History

First Known Use

circa 1728, in the meaning defined above

Time Traveler

The first known use of spherical trigonometry was circa 1728

See more words from the same year

Browse Nearby Words

spherical triangle

spherical trigonometry

spherical vault

See all Nearby Words

Cite this Entry

Style

“Spherical trigonometry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spherical%20trigonometry. Accessed 1 Jul. 2025.

Copy Citation

Popular in Grammar & Usage

More Words You Always Have to Look Up

Using Bullet Points ( • )

Should that word have a hyphen?

Rack vs. Wrack

Are 'Funner' and 'Funnest' Real Words?

Popular in Wordplay

spherical trigonometry

noun

Word History

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on spherical trigonometry

More from Merriam-Webster

Can you solve 4 words at once?

Can you solve 4 words at once?

Word of the Day

verbose