well-defined

形容词 well-defined:

1. having a clean and distinct outline as if precisely cut along the edges
   同义词：chiseled
2. accurately stated or described
   同义词：clear

well-de.fined

adj.（形容词）
Having definite and distinct lines or features:
界限分明的：有明确的和清晰的线条或特征的：
例句：
a well-defined silhouette.
轮廓分明的侧影

Accurately and unambiguously stated or described:
规定明确的：精确地、不含糊地声明或描述的：
例句：
a well-defined argument.
明确的争辩