Standard Lemma guide

collineation

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.

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Pronunciation

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1

noun

Meaning 1

The act of collineating; collimation.

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

An isomorphism from one projective space to another, often to itself.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: algebra, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Narrower terms: central collineation

History

Etymology

From Latin collineare to direct in a straight line. See collimation.

Real reading context

collineation in complete knowledge articles