Standard Lemma guide

eigenvector

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

A vector that is only scaled (not rotated out of its span) under a particular linear transformation; a left or right eigenvector depending on context; (more formally) given a linear transformation A, a vector x such that Ax=λx [or xA=λx] for some scalar λ (called the eigenvalue).

Definition source: English Wiktionary via Wiktextract

Topics: linear-algebra, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: characteristic vector, latent vector, proper vector

Antonyms: none provided

2

noun

Meaning 2

A right eigenvector; given a matrix A, the eigenvector of the transformation "left-side multiplication by A."

Definition source: English Wiktionary via Wiktextract

Topics: engineering, natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From eigen- + vector, a partial calque of German Eigenvektor. The prefix eigen- (also used in eigenvalue) was first used in 1904, by David Hilbert, and was possibly inspired by a related usage by Hermann von Helmholtz.

Across languages

Translations

33 source translations are retained for this English entry.

  • Asturian: vector propiu — vector not rotated by linear transformation
  • Asturian: autovector — vector not rotated by linear transformation
  • Catalan: vector propi — vector not rotated by linear transformation
  • Chinese Mandarin: 本徵向量 /本征向量 (běnzhēng xiàngliàng) — vector not rotated by linear transformation
  • Chinese Mandarin: 特徵向量 /特征向量 (tèzhēng xiàngliàng) — vector not rotated by linear transformation
  • Danish: egenvektor — vector not rotated by linear transformation
  • Dutch: eigenvector — vector not rotated by linear transformation
  • Estonian: omavektor — vector not rotated by linear transformation
  • Finnish: ominaisvektori — vector not rotated by linear transformation
  • French: vecteur propre — vector not rotated by linear transformation
  • Galician: vector propio — vector not rotated by linear transformation
  • Galician: autovector — vector not rotated by linear transformation
  • Galician: eigenvector — vector not rotated by linear transformation
  • German: Eigenvektor — vector not rotated by linear transformation
  • Greek: ιδιοδιάνυσμα (idiodiánysma) — vector not rotated by linear transformation
  • Hebrew: וֶקְטוֹר עַצְמִי — vector not rotated by linear transformation
  • Hindi: अभिलक्षणिक सदिश (abhilakṣaṇik sadiś) — vector not rotated by linear transformation
  • Icelandic: eiginvigur — vector not rotated by linear transformation
  • Icelandic: eiginvektor — vector not rotated by linear transformation
  • Italian: autovettore — vector not rotated by linear transformation
  • Japanese: 固有ベクトル (koyū bekutoru) — vector not rotated by linear transformation
  • Norwegian Bokmål: egenvektor — vector not rotated by linear transformation
  • Norwegian Nynorsk: eigenvektor — vector not rotated by linear transformation
  • Polish: wektor własny — vector not rotated by linear transformation
  • Portuguese: autovetor — vector not rotated by linear transformation
  • Portuguese: vetor próprio — vector not rotated by linear transformation
  • Romanian: vector propriu — vector not rotated by linear transformation
  • Russian: со́бственный ве́ктор (sóbstvennyj véktor) — vector not rotated by linear transformation
  • Spanish: vector propio — vector not rotated by linear transformation
  • Spanish: autovector — vector not rotated by linear transformation
  • Spanish: eigenvector — vector not rotated by linear transformation
  • Swedish: egenvektor — vector not rotated by linear transformation
  • Welsh: fector eigen — vector not rotated by linear transformation