| orbitale | In cephalometrics, the lowermost point in the lower margin of the bony orbit that may be felt under the skin. Origin: L. Of an orbit (05 Mar 2000) |
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| orbitalis muscle | <anatomy> A rudimentary nonstriated muscle, crossing the infraorbital groove and sphenomaxillary fissure, intimately united with the periosteum of the orbit. Synonym: musculus orbitalis, Muller's muscle, orbital muscle. (05 Mar 2000) |