eigenvector

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noun

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).

UncommonScrabble 17

Meanings

nouneigenvector (plural eigenvectors)

plural eigenvectors

  1. linear algebraA 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).

    Both equations give the relation x₁ = −x₂. Therefore the set of eigenvectors corresponding to λ = 2 is given by: […] An eigenvector corresponding to λ₁ = 2 is ( −1 1 ).

    2025 March 22 (last accessed), “Lesson 11”, in University College London, archived from the original on 06 Oct 2021, 8.2 Method to find eigenvalues and eigenvectors, page 1

    Synonyms: characteristic vector, latent vector, proper vector

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

Synonyms & antonyms

nounA 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).

Origin

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.

Full word history & related roots →

Translations

Catalan vector propi
  • vector propivector not rotated by linear transformation
Chinese Mandarin 本徵向量 /本征向量, 特徵向量 /特征向量
  • 本徵向量 /本征向量 (běnzhēng xiàngliàng)vector not rotated by linear transformation
  • 特徵向量 /特征向量 (tèzhēng xiàngliàng)vector not rotated by linear transformation
Danish egenvektor
  • egenvektorvector not rotated by linear transformation
Dutch eigenvector
  • eigenvectorvector not rotated by linear transformation
Estonian omavektor
  • omavektorvector not rotated by linear transformation
Finnish ominaisvektori
  • ominaisvektorivector not rotated by linear transformation
French vecteur propre
  • vecteur proprevector not rotated by linear transformation
German Eigenvektor
  • Eigenvektorvector not rotated by linear transformation
Greek ιδιοδιάνυσμα
  • ιδιοδιάνυσμα (idiodiánysma)vector not rotated by linear transformation
Hebrew וֶקְטוֹר עַצְמִי
  • וֶקְטוֹר עַצְמִיvector not rotated by linear transformation
Hindi अभिलक्षणिक सदिश
  • अभिलक्षणिक सदिश (abhilakṣaṇik sadiś)vector not rotated by linear transformation
Hungarian sajátvektor
  • sajátvektorvector not rotated by linear transformation
Icelandic eiginvigur, eiginvektor
  • eiginvigurvector not rotated by linear transformation
  • eiginvektorvector not rotated by linear transformation
Italian autovettore
  • autovettorevector not rotated by linear transformation
Japanese 固有ベクトル
  • 固有ベクトル (koyū bekutoru)vector not rotated by linear transformation
Norwegian Bokmål egenvektor
  • egenvektorvector not rotated by linear transformation
Norwegian Nynorsk eigenvektor
  • eigenvektorvector not rotated by linear transformation
Polish wektor własny
  • wektor własnyvector not rotated by linear transformation
Portuguese autovetor, vetor próprio
  • autovetorvector not rotated by linear transformation
  • vetor própriovector not rotated by linear transformation
Romanian vector propriu
  • vector propriuvector not rotated by linear transformation
Russian со́бственный ве́ктор
  • со́бственный ве́ктор (sóbstvennyj véktor)vector not rotated by linear transformation
Spanish vector propio, autovector
  • vector propiovector not rotated by linear transformation
  • autovectorvector not rotated by linear transformation
  • eigenvectorvector not rotated by linear transformation
Swedish egenvektor
  • egenvektorvector not rotated by linear transformation
Welsh fector eigen
  • fector eigenvector not rotated by linear transformation
Cite this entry
APA

eigenvector. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/eigenvector

MLA

“eigenvector.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/eigenvector. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “eigenvector,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/eigenvector.

Source: eigenvector on Wiktionary, CC BY-SA 4.0.