The arch of hair above each eye

Wiktionary Word definitions in Wiktionary
n. 1 The eyebrow, or the region of the eyebrows 2 The arch of hair above each eye

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Supercilium \Su`per*cil"i*um\, n. [L.] (Zo["o]l.) The eyebrow, or the region of the eyebrows.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
the eyebrow, 1670s, from Latin supercilium "an eyebrow; a ridge, summit;" figuratively "haughtiness, arrogance, pride" (see supercilious ).

WordNet Word definitions in WordNet
n. the arch of hair above each eye [syn: eyebrow , brow ]

Wikipedia Word definitions in Wikipedia
The supercilium is a plumage feature found on the heads of some bird species. It is a stripe which runs from the base of the bird's beak above its eye, finishing somewhere towards the rear of the bird's head. Also known as an "eyebrow", it is distinct from ...