Source : Webster's Revised Unabridged Dictionary (1913)

Zygoma \Zy*go"ma\, n. [NL., fr. Gr. ?, fr. ? to yoke, ? a yoke.]
   (Anat.)
   (a) The jugal, malar, or cheek bone.
   (b) The zygomatic process of the temporal bone.
   (c) The whole zygomatic arch.

Source : WordNet®

zygoma
     n : the slender arch formed by the temporal process of the
         cheekbone that bridges to the zygomatic process of the
         temporal bone [syn: {zygomatic arch}, {arcus zygomaticus}]