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}]
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]
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]