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glabellum |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Glabellum \Gla*bel"lum\, n.; pl {Glabella}. [NL. See {Glabella}.] (Zo["o]l.) The median, convex lobe of the head of a trilobite. See {Trilobite}.