Glabellum

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]