鼻梁 (bí liáng) literally means 'nose beam'—'鼻' (bí) means 'nose', and '梁' (liáng) means 'beam' or 'ridge', evoking the bony, structural ridge that runs vertically down the center of the face between the eyes. It specifically refers to the upper, firm part of the nose formed by the nasal bones, distinct from the softer, cartilaginous lower portion.

This term is commonly used in medical, cosmetic, and everyday descriptive contexts—such as discussing facial anatomy, eyeglass fit, plastic surgery, or physical appearance. Unlike general terms like 'nose' (鼻子), 鼻梁 emphasizes the prominent central ridge, making it useful for precise anatomical reference or vivid description. It appears frequently in health discussions, beauty standards, and even literature describing character features.