Source : Webster's Revised Unabridged Dictionary (1913)

Scapula \Scap"u*la\ (sk[a^]p"[-u]*l[.a]), n.; pl. L.
   {Scapul[ae]}, E. {Scapulas}. [L.]
   1. (Anat.) The principal bone of the shoulder girdle in
      mammals; the shoulder blade.

   2. (Zo["o]l.) One of the plates from which the arms of a
      crinoid arise.