Standard Lemma guide

trisection

noun · 2 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

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1

noun

Meaning 1

The act of division of something (such as an angle, line segment, or circle) into three parts, especially three equal parts.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: geometry, mathematics, sciences

Examples

  • A traditional (but impossible) mathematical problem was to achieve trisection using a straight edge and compass.

Meaning relationships

Synonyms: trisegmentation

Antonyms: none provided

2

noun

Meaning 2

Any of the three portions thus produced.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: third, one-third

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

4 source translations are retained for this English entry.

  • Danish: tredeling — division of angle into three
  • Finnish: (kulman) kolmijako — division of angle into three
  • Norwegian Bokmål: tredeling — division of angle into three
  • Norwegian Nynorsk: tredeling — division of angle into three