characteristic root

noun Mathematics.

a scalar for which there exists a nonzero vector such that the scalar times the vector equals the value of the vector under a given linear transformation on a vector space.
a root of the characteristic equation of a given matrix.

Origin of characteristic root

First recorded in 1955–60
Also called characteristic value, eigenvalue, latent root, proper value. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019