Pronunciation: (in"di-tûr'mu-nit), [key]
1. not determinate; not precisely fixed in extent; indefinite; uncertain.
2. not clear; vague.
3. not established.
4. not settled or decided.
a. (of a quantity) undefined, as 0/0.
b. (of an equation) able to be satisfied by more than one value for each unknown.
6. Bot.(of an inflorescence) having the axis or axes not ending in a flower or bud, thus allowing further elongation.
Math.something whose value is not specified: used esp. in abstract algebra; a variable.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.