- the bony arch over each eye
- the arch of hair growing on this
Origin of eyebrowMiddle English eiebrou: see eye + brow
raise an eyebrow
to appear or feel skeptical, surprised, mildly scandalized, etc.
- The bony ridge extending over the eye.
- The arch of short hairs covering this ridge.
- A small, arched dormer that projects only slightly from the roof.