'well-defined' definitions:

Definition of 'well-defined'

From: WordNet
adjective
Having a clean and distinct outline as if precisely cut along the edges; "a finely chiseled nose"; "well-defined features" [syn: chiseled, well-defined]
adjective
Accurately stated or described; "a set of well-defined values" [syn: well-defined, clear] [ant: ill-defined, unclear]