Source : Webster's Revised Unabridged Dictionary (1913)

Calvaria \Cal*va"ri*a\ (k[a^]l*v[=a]"r[i^]*[.a]), n. [L. See
   {Calvary}.] (Anat.)
   The bones of the cranium; more especially, the bones of the
   domelike upper portion.

Source : WordNet®

calvaria
     n : the dome of the skull [syn: {skullcap}]