Definition of supercilium
plural supercilia
\-ēə\
1 a
: the region of the eyebrows : eyebrow
b
: the overhanging margin of a bony cavity (as of the acetabulum)
2 a
: a fillet surmounting the cymatium in a Roman cornice
b
: a fillet above or below the scotia of an Attic base
c
: the lintel of a door
