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evolute

Upper-Intermediate (B2)

IPA: /ˈɛvəluːt/

KK: /ˈɛvəlut/

noun
Definition

In mathematics, it refers to the path traced by the centers of curvature of a specific curve.


Example

The evolute of a circle is a single point at its center.


Conversation
Sloth A
Have you ever heard of the term evolute?
Sloth B
Yeah, I think it's related to curves in math, right?
Sloth A
Exactly! It's like the path of the centers of curvature.
Sloth B
That sounds interesting; I never knew math could be so visual!

Synonyms & Antonyms
Synonyms
curvature
envelope
locus
Antonyms
Root Explanation

Evolute → It is formed from "e-" (meaning out) and "volut-" (from "volvere", meaning to roll or turn). The word describes a curve that is generated by the motion of a point that rolls along another curve, hence the idea of rolling out.

Memory Tip

Think of something 'rolling out' ('e-' means out and 'volut-' relates to rolling) to remember that 'evolute' refers to a curve generated by rolling.

Visually Confused Words
revolute
devolute
volute
revoluted
voluted
elute
volutate
revolter
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