Pronunciation: (in"tOO-ish'u-niz"um, -tyOO-), [key]
1. Ethics.the doctrine that moral values and duties can be discerned directly.
a. the doctrine that in perception external objects are given immediately, without the intervention of a representative idea.
b. the doctrine that knowledge rests upon axiomatic truths discerned directly.
3. Logic, Math.the doctrine, propounded by L. E. J. Brouwer, that a mathematical object is considered to exist only if a method for constructing it can be given.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.