part of part of eyebrow SCTID:265781000 MESH:D005138 UBERON:0010163 Wikipedia:Eyebrow FMA:54237 supercilium NCIT:C32575 The eyebrow is an area of thick, delicate hairs above the eye that follows the shape of the lower margin of the brow ridges. Their main function is to protect the eye, but they are also important to human communication and facial expression. It is not uncommon for people to modify their eyebrows by means of hair addition or removal, make up, or piercings. collection of hair on face ocular adnexa