A rounded edge or molding in architecture and carpentry that curves outward smoothly like a bull's snout.
From 'bull' + 'nose', referring to the rounded, protruding shape. This architectural term emerged in the 19th century to describe the convex shaping of edges on stairs, moldings, and trim.
Bullnose edging is still used in modern construction because the rounded shape is safer (no sharp edges) and hides minor damage better than sharp corners—it's functional beauty.
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