supercilium

noun8

1. •
   A superciliary marking or structure, especially in a bird.
2. •
   (rare) The eyebrow (arch of hair above each eye).
3. •
   (rare) The region of the eyebrows.
4. •
   (rare) The overhanging margin of a bony cavity (as of the acetabulum).
5. •
   The narrow fillet above the cymatium of a cornice.
6. •
   A fillet above and below the scotia of an Attic base.
7. •
   The lintel or transverse part of a door frame.
8. •
   (humorous, rare) Superciliousness, haughtiness; an instance of this, a supercilious demeanor.