• (orbit) The bony cavity that contains the eye and its associated structures.
  CDISC Terminology
  Clinical Data Interchange Standards Consortium (CDISC), 2021
• (orbit) Anatomical compartment wall which surrounds orbital cavity and its content.
  Foundational Model of Anatomy
  University of Washington, 2017
• (orbit) Bony cavity that holds the eyeball and its associated tissues and appendages.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2025
• (orbit) The bony cavity of the skull which contains the eye, anterior portion of the optic nerve, ocular muscles and ocular adnexa. Seven bones contribute to the structure of the orbit: the frontal, maxillary, zygomatic, sphenoid, lacrimal, ethmoid, and palatine bones.
  NCI
  U.S. National Cancer Institute, 2021
• (orbit) The bony socket that holds the eyeball.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• (orbital cavity) Space of compartment of head which is bound by the internal surface of the wall of orbit.
  Foundational Model of Anatomy
  University of Washington, 2017
• (orbital cavity) Space of compartment of head, each instance of which is bound by the internal surface of wall of some orbit.
  Foundational Model of Anatomy
  University of Washington, 2017
• The orbit, which protects, supports, and maximizes the function of the eye, is shaped like a quadrilateral pyramid, with its base in plane with the orbital rim. Seven bones conjoin to form the orbital structure, as shown in the image below.
  Medscape
  WebMD, 2025