Glabellum

• (n.) The median, convex lobe of the head of a trilobite. See Trilobite.
Found on http://thinkexist.com/dictionary/meaning/glabellum/

Glabellum

Gla·bel'lum noun ; plural Glabella . [ New Latin See Glabella .] (Zoology) The median, convex lobe of the head of a trilobite. See Trilobite .
Found on http://www.encyclo.co.uk/webster/G/29
No exact match found