1. 
[syn: glabella, mesophyron]
The Collaborative International Dictionary of English v.0.48:
Glabella \Gla*bel"la\, n.; pl. Glabell[ae]. [NL., fr. L.
   glabellus hairless, fr. glaber bald.] (Anat.)
   The space between the eyebrows, also including the
   corresponding part of the frontal bone; the mesophryon. --
   Gla*bel"lar, a.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Glabellum \Gla*bel"lum\, n.; pl. Glabella. [NL. See
   Glabella.] (Zool.)
   The median, convex lobe of the head of a trilobite. See
   Trilobite.
   [1913 Webster]
WordNet (r) 3.0 (2006):
glabella
    n 1: a smooth prominence of the frontal bone between and above
         the eyebrows; the most forward projecting point of the
         forehead in the midline at the level of the supraorbital
         ridges [syn: glabella, mesophyron]