in·​vo·​lute | \ ˈin-və-ˌlüt How to pronounce involute (audio) \

Definition of involute

 (Entry 1 of 3)

1a : curled spirally
b(1) : curled or curved inward
(2) : having the edges rolled over the upper surface toward the midrib an involute leaf
c : having the form of an involute a gear with involute teeth



Definition of involute (Entry 2 of 3)

: a curve traced by a point on a thread kept taut as it is unwound from another curve involute of a circle


in·​vo·​lute | \ ˌin-və-ˈlüt How to pronounce involute (audio) \
involuted; involuting

Definition of involute (Entry 3 of 3)

intransitive verb

1 : to become involute
2a : to return to a former condition
b : to become cleared up : disappear

Illustration of involute

Illustration of involute


involute a, p, p, p, p traced by any point p of the thread t unwinding from curve c

In the meaning defined above

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Examples of involute in a Sentence

Adjective the novel's deliberately involute plot is intended as a brainteaser for readers the chambered nautilus is readily identified by its involute seashell

First Known Use of involute


1661, in the meaning defined at sense 1a


circa 1796, in the meaning defined above


1816, in the meaning defined at sense 1

History and Etymology for involute


Latin involutus concealed, from past participle of involvere

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Time Traveler for involute

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The first known use of involute was in 1661

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Cite this Entry

“Involute.” Dictionary, Merriam-Webster, Accessed 10 May. 2021.

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More Definitions for involute

in·​vo·​lute | \ ˌin-və-ˈlüt How to pronounce involute (audio) \
involuted; involuting

Medical Definition of involute

1 : to return to a former condition after pregnancy the uterus involutes
2 : to become cleared up the disease involutes without desquammationAnnals of New York Academy of Sciences

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