zygomatic arch

noun

Anatomy.

1. the bony arch at the outer border of the eye socket, formed by the union of the cheekbone and the zygomatic process of the temporal bone.

zygomatic arch

noun

1. Also called: zygoma. the slender arch of bone that forms a bridge between the cheekbone and the temporal bone on each side of the skull of mammals

Word History and Origins

Origin of zygomatic arch¹

First recorded in 1815–25

Example Sentences

Sam Presti, the Thunder's executive vice president and general manager, announced that the procedure to repair the zygomatic arch was a success.

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Like the Asian C. tologoijensis and other more archaic Coelodonta taxa, it has a proportionally broader skull, more anteriorly located orbits, and more curved zygomatic arches than the classic Woolly rhinos of the Late Pleistocene.

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Skull: Rostrum longer, narrower and more depressed; skull convex rather than flat; nasals longer, and convex rather than flat; tympanic bullae larger; zygomatic arches shorter and more massive; molariform teeth larger.

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Arising from the zygomatic arch, and passing downwards and backwards, it is inserted into the external surface of the ramus of the mandible and into its angle.

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A to A' Zygomatic breadth.—Greatest distance across zygomatic arches of cranium at right angles to long axis of skull.

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