WordNet (r) 3.0 (2006):
eigenvalue n 1: (mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant [syn: eigenvalue, eigenvalue of a matrix, eigenvalue of a square matrix, characteristic root of a square matrix]The Free On-line Dictionary of Computing (30 December 2018):
eigenvalueThe factor by which a linear transformation multiplies one of its eigenvectors. (1995-04-10)