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noun, Craniometry.
the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.


Read Also:

  • Orbital muscle

    orbital muscle n. A rudimentary nonstriated muscle, crossing the infraorbital groove and the sphenomaxillary fissure and united with the periosteum of the eye socket.

  • Orbital plane

    orbital plane n. The orbital surface of the maxilla that lies perpendicular to the Frankfort plane at the orbitale.

  • Orbital process

    orbital process n. The anterior and larger of the two processes at the upper extremity of the vertical plate of the palatine bone, articulating with the upper jawbone and the ethmoid and sphenoid bones.

  • Orbital-quantum-number

    noun, Physics. 1. . noun, Physics. 1. the quantum number that designates the orbital angular momentum of a particular quantum state of an electron in an atom and that assumes integral values from zero to one less than the value of the principal quantum number. azimuthal quantum number See under quantum number.

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