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.

Source : WordNet®

scapula
     n : either of two flat triangular bones one on each side of the
         shoulder in human beings [syn: {shoulder blade}, {shoulder
         bone}]
     [also: {scapulae} (pl)]

scapulae
     See {scapula}