evolute

C2+ Topic:General Vocabulary

US /ˈɛvəˌlut/ UK /ˈiːvəluːt/ See IPA manual

Meanings

1

noun
in geometry, the locus of the centers of curvature of a curve

The evolute of an ellipse traces a four-cusped astroid shape.

Thesaurus

Opposites

involute

Word family

Related forms evolution evolve involute convolute

Etymology

From Latin evolutus, past participle of evolvere 'to unroll, unfold', from e- 'out' + volvere 'to roll'.

evolutus Latin volvere Latin

View etymology graph ->

Topics

General Vocabulary

External links

# evolute

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** /ˈɛvəˌlut/
**IPA (UK):** /ˈiːvəluːt/

## Meanings
1. in geometry, the locus of the centers of curvature of a curve

## Examples
- The evolute of an ellipse traces a four-cusped astroid shape.

## Antonyms
- involute

## Related Forms
- evolution
- evolve
- involute
- convolute

## Roots and Affixes
- Root: evolutus
- Root: volvere

## Etymology
From Latin evolutus, past participle of evolvere 'to unroll, unfold', from e- 'out' + volvere 'to roll'.

## AI Etymology
Evolute comes from Latin evolutus, past participle of evolvere 'to unroll, unfold', from e- 'out' + volvere 'to roll'. Morphologically, the form is compositional, with the named elements combining to produce the modern spelling and sense. In present use, it is used as a noun and adjective meaning "in geometry, the locus of the centers of curvature of a curve", so the historical material remains connected with the current sense rather than standing as bare ancestry. The wider English family includes related forms such as evolution, evolve, involute, and convolute, showing how the same historical material continues to organize neighboring vocabulary. The named historical forms include Latin evolutus and Latin volvere, keeping the history tied to concrete forms rather than a loose resemblance. Contrasts such as involute locate the modern specialization without adding a new origin story.

## Topics
- General Vocabulary

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