SINCE 1828

An Encyclopædia Britannica Company

trigonometric

play

adjective trig·o·no·met·ric \ˌtri-gə-nə-ˈme-trik\

variants: or less commonly

trigonometrical

play \-tri-kəl\

Definition of trigonometric

: of, relating to, or being in accordance with trigonometry

trigonometrically

play \-tri-k(ə-)lē\ adverb

See trigonometric defined for kids

1687

First Known Use of trigonometric

1687

Seen and Heard

What made you want to look up trigonometric? Please tell us where you read or heard it (including the quote, if possible).

show

WORD OF THE DAY

torpedo

play

a weapon for destroying ships

Words at Play

alt-5926e94cc0e45

'Climate' Change

No denying this word's history

alt-5925b73b3a62e

'Author' is a Verb

Beyond the mere act of writing

alt-592708149cf54

Don't Catch 'Flack' for Using 'Flak'

How a word for antiaircraft guns came to refer to PR pro

Plural Words With Multiple Spellings

Multiple spellings for "multiple" words.

Ask the Editors

Is it wrong to use 'decimate' to mean 'destroy'?

Language changes

The Serial Comma

Why don't they call it the Merriam-Webster comma?

video-irregardless-grammar-peeve-blend-of-the-synonyms-irrespective-and-regardless

Irregardless

It is in fact a real word (but that doesn't mean you should use it).

video-moose-goose-weird-plurals

Weird Plurals

One goose, two geese. One moose, two... moose. What's up with that?

Word Games

Winning Words from Scripps Spelling Bee Quiz

Can you outdo past winners of the Spelling Bee?

Take the quiz

peter-bruegel-tower-of-babel-painting

Where in the World? A Quiz

Do you know what languages these words come from?

Take the quiz

Spell It

Can you spell these 10 commonly misspelled words?

Take the quiz

SCRABBLE® Sprint

SCRABBLE® Sprint

SCRABBLE® fans, sharpen your skills!

Play the game