zygomatic arch


nounAnatomy.
  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.

Origin of zygomatic arch

1
First recorded in 1815–25

Words Nearby zygomatic arch

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use zygomatic arch in a sentence

  • The breadth across the zygomatic arch is 2·38 against 3·64 of A. collaris.

  • The boundary of the orbit below is very imperfect, the zygomatic arch being incomplete.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The cranial cavity is small, and the facial part of the skull is generally much developed; often the zygomatic arch is incomplete.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The zygomatic arch is very weak, and the palate extends very far back.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The zygomatic arch is incomplete, and the jugal (fig. 91, 5) is curiously forked, but in a manner differing in the two genera.

    The Vertebrate Skeleton | Sidney H. Reynolds

British Dictionary definitions for zygomatic arch

zygomatic arch

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012