Of or relating to a border, edge, or margin; having a definite edge or boundary.
From Greek kraspedal, derived from kraspedon (border, edge, margin). The root appears in medical and biological terminology to describe structures with defined edges.
Biologists and doctors use this term when they need to describe something with a sharp, distinct edge—'craspedal margin' is the technical way to say 'well-defined border.' It's Greek precision applied to modern anatomy.
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