Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “tangent”

tangent

noun [C] uk   /ˈtæn.dʒənt/ specialized us  

tangent noun [C] (CIRCLE)

a straight line that touches but does not cut into a curve

tangent noun [C] (TRIANGLE)

(written abbreviation tan) (in a triangle that has one angle of 90°) the ratio of the length of the side opposite an angle less than 90° divided by the length of the shorter of the two sides that are next to the angle
Compare
tangential
adjective uk   /tænˈdʒen.ʃəl/ us  
(Definition of tangent from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of tangent?
Add Cambridge dictionaries to your browser to your website

Definitions of “tangent” in other dictionaries

Word of the Day

see the light of day

When something sees the light of day, it appears for the first time.

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More