Webster's Dictionary (GCIDE)
Scapula
\Scap"u*la\ (sk[a^]p"[-u]*l[.a]), n.; pl. L.
Scapulae, E.
Scapulas. [L.]
1.(Anat.) The principal bone of the shoulder girdle in mammals; the shoulder blade. [1913 Webster]
2.(Zool.) One of the plates from which the arms of a crinoid arise. [1913 Webster]