Source : Webster's Revised Unabridged Dictionary (1913)

Coronary \Cor"o*na*ry\, n.
   A small bone in the foot of a horse.

Coronary \Cor"o*na*ry\ (k?r"?-n?-r?), a. [L. coronarius: cf. F.
   coronaire.]
   1. Of or pertaining to a crown; forming, or adapted to form,
      a crown or garland. ``Coronary thorns.'' --Bp. Pearson.

            The catalogue of coronary plants is not large in
            Theophrastus.                         --Sir T.
                                                  Browne.

   2. (Anat.) Resembling, or situated like, a crown or circlet;
      as, the coronary arteries and veins of the heart.

Source : WordNet®

coronary
     adj : surrounding like a crown (especially of the blood vessels
           surrounding the heart); "coronary arteries"

coronary
     n : obstruction of blood flow in a coronary artery by a blood
         clot (thrombus) [syn: {coronary thrombosis}]