Standard Lemma guide

involution

noun · 15 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ɪnvəˈluːʃən/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -uːʃən

1

noun

Meaning 1

Entanglement; a spiralling inwards; intricacy.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A complicated grammatical construction.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Examples

  • 1917, James Huneker, Unicorns, New York: Scribner, Chapter 11 “Style and Rhythm in English Prose,” p. 129, Walter Pater’s essay on Style is honeycombed with involutions and preciosity.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An endofunction whose square is equal to the identity function; a function equal to its inverse.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Narrower terms: complex conjugation, complementation

4

noun

Meaning 4

The shrinking of an organ (such as the uterus) to a former size.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

The regressive changes in the body occurring with old age.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, physiology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A power: the result of raising one number to the power of another.

Definition source: English Wiktionary via Wiktextract

Usage: countable, obsolete, uncountable

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A cessation of development or progress involving intense inner competition.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: economics, human-sciences, sciences, social-science, social-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

A state of increased competition for limited resources, requiring great effort to stay ahead.

Definition source: English Wiktionary via Wiktextract

Usage: countable, neologism, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

The migration of a cell layer inward, sliding over an outer layer of cells. It occurs at gastrulation during embryogenesis.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

the action of enfolding something

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: enfolding

Antonyms: none provided

Broader terms: change of shape

11

noun

Meaning 11

the process of raising a quantity to some assigned power

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: exponentiation

Antonyms: none provided

Broader terms: mathematical process, mathematical operation, operation

12

noun

Meaning 12

the act of sharing in the activities of a group

Definition source: Princeton WordNet 3.0

Examples

  • the teacher tried to increase his students' engagement in class activities

Meaning relationships

Synonyms: engagement, participation, involvement

Antonyms: none provided

Broader terms: group action

Narrower terms: commitment, intervention, intercession, group participation

13

noun

Meaning 13

marked by elaborately complex detail

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: elaborateness, elaboration, intricacy

Antonyms: none provided

Broader terms: complexity, complexness

14

noun

Meaning 14

a long and intricate and complicated grammatical construction

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: construction, grammatical construction, expression

15

noun

Meaning 15

reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: organic process, biological process

History

Etymology

From Latin involūtiō, from involvō.

Across languages

Translations

24 source translations are retained for this English entry.

  • Bulgarian: объркване (obǎrkvane) — entanglement; a spiralling inwards
  • Chinese: 內卷 /内卷 (nèijuǎn) — entanglement; a spiralling inwards
  • German: Einrollen — entanglement; a spiralling inwards
  • Chinese: 對合 /对合 (duìhé) — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Finnish: involuutio — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • French: involution — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • German: Involution — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Icelandic: sjálfhverfa — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Icelandic: sjálfhverf vörpun — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Italian: involuzione — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Japanese: 対合 (tsuigō) — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Occitan: involucion — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Polish: inwolucja — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Swedish: involution — mathematics; an endofunction whose square is equal to the identity function; a function equal to its inverse
  • Chinese: 退化 (tuìhuà) — shrinking of an organ to a former size
  • French: involution — shrinking of an organ to a former size
  • German: Involution — shrinking of an organ to a former size
  • German: Rückbildung — shrinking of an organ to a former size
  • Bulgarian: дегенерация (degeneracija) — regressive changes in the body occurring with old age
  • German: Involution — regressive changes in the body occurring with old age
  • Spanish: involución — regressive changes in the body occurring with old age
  • Chinese: 內卷 /内卷 (nèijuǎn) — a cessation of development or progress despite intense inner competition
  • Spanish: involución — a cessation of development or progress despite intense inner competition
  • Chinese: 內卷 /内卷 (nèijuǎn) — a state of increased competition for limited resources, requiring great effort to stay ahead