well-defined
UK: ˌwel dɪˈfaɪnd | US: ˌwel dɪˈfaɪnd
adj. clearly and precisely stated or described
adj. having distinct boundaries or limits
adj. (mathematics) unambiguous in logical structure
The word combines "well," from Old English wel (good, rightly), and "defined," from Latin definire (to set bounds). "Well" intensifies the clarity implied by "defined," originally used in logic/mathematics to describe concepts with unambiguous parameters. Over time, it expanded to general usage for anything with precise boundaries.
The experiment requires a well-defined hypothesis.
Her responsibilities at work are well-defined.
A well-defined coastline makes navigation easier.
The rules of the game must be well-defined to avoid disputes.
In geometry, a well-defined shape has exact measurements.