/zʌɪˈgəʊmə,zɪg-/
Noun, plural zygomas or zygomata
1. The slender arch formed by the temporal process of the cheekbone that bridges to the zygomatic process of the temporal bone. (wordnetweb.princeton.edu)
2. Generally refers to the zygomatic bone, a bone of the human skull commonly referred to as the cheekbone or malar bone. (wikipedia.org)
3. May also refer to the zygomatic arch or the zygomatic process.
Word origin: From Latin zygomaticus, from Greek zygoma.