An eyebrow is an area of short hairs above each eye that follows the shape of the lower margin of the brow ridges of some mammals. In humans, eyebrows serve two main functions: first, communication through facial expression, and second, prevention of sweat, water, and other debris from falling down into the eye socket. It is common for people to modify their eyebrows by means of hair removal and makeup.

अयं भ्रूः अपि शरीरस्य किञ्चन अङ्गम् । एषः भ्रूः विभिन्नानाम् आकारकाणां भवति । अयं भ्रूः आङ्ग्लभाषायां Eyebrow इति उच्यते । अयं भ्रूः नेत्रललाटयोः मध्ये विद्यमानम् अङ्गम् ।