eigenfunction

[ahy-guh n-fuhngk-shuh n]

noun Mathematics.

a characteristic vector in a vector space in which the elements are functions.

Origin of eigenfunction

1925–30; < German Eigenfunktion, equivalent to eigen- characteristic, particular + Funktion function
Also called proper function.
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British Dictionary definitions for eigenfunction

eigenfunction

noun

maths physics a function satisfying a differential equation, esp an allowed function for a system in wave mechanics
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012