• WordNet 3.6
    • n supercilium the arch of hair above each eye
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Webster's Revised Unabridged Dictionary
    • n Supercilium (Zoöl) The eyebrow, or the region of the eyebrows.
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Century Dictionary and Cyclopedia
    • n supercilium The eyebrow. The superciliary region, ridge, or arch, including the hairs which grow upon it; the brow-ridge and associate structures.
    • n supercilium In ancient architecture, the upper member of a cornice; also, the small fillet on either side of the scotia of the Ionic base.
    • n supercilium In entomology, an arched line of color partly surrounding an ocellus.
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Webster's Revised Unabridged Dictionary


In literature:

Supercilium: an arched line over an ocellate spot.
"Explanation of Terms Used in Entomology" by John. B. Smith