(n.) That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.
Example Sentences:
Orbit
Definition:
(n.) The path described by a heavenly body in its periodical revolution around another body; as, the orbit of Jupiter, of the earth, of the moon.
(n.) An orb or ball.
(n.) The cavity or socket of the skull in which the eye and its appendages are situated.
(n.) The skin which surrounds the eye of a bird.
Example Sentences:
(1) Furthermore echography revealed a collateral subperiosteal edema and a moderate thickening of extraocular muscles and bone periostitis, a massive swelling of muscles and bone defects in subperiosteal abscesses as well as encapsulated abscesses of the orbit and a concomitant retrobulbar neuritis in orbital cellulitis.
(2) The nature of the putative autoantigen in Graves' ophthalmopathy (Go) remains an enigma but the sequence similarity between thyroglobulin (Tg) and acetylcholinesterase (ACHE) provides a rationale for epitopes which are common to the thyroid gland and the eye orbit.
(3) In reconstruction of the orbital floor, homograft lyophilised dura or cialit-stord rib cartilage are suitable, but the best materials are autologous cartilage or silastic or teflon.
(4) Computed Tomography was used to demonstrate the increased retro-orbital fat.
(5) A microdissection of the orbital nerves of the cat was made paying particular attention to the accessory ciliary ganglion.
(6) As with alloplastic orbital implant extrusions in enucleated sockets, autogeneous dermis fat grafts can be useful in managing extrusions in previously eviscerated sockets.
(7) Orbital hypertelorism, strictly defined as an increase in bony interorbital distance, is not itself an isolated syndrome, but is instead an anomaly that may occur as either part of a syndrome or malformation sequence.
(8) In several other cases, MR provided information beyond that obtained with CT. MR has the advantage of providing exquisite anatomic detail in multiplanar images, and it appears to be more sensitive than CT in detecting small, subacute and chronic hemorrhage within soft-tissue masses in the orbit and in detecting ischemia of the globe.
(9) We describe here two essentially different patterns of behavioral recovery following selective lesions of the dorsolateral and orbital prefrontal cortex.
(10) A planet with conditions that could support life orbits a twin neighbour of the sun visible to the naked eye, scientists have revealed.
(11) Bacterial orbital cellulitis is a feared complication of paranasal sinus infection.
(12) The procedure appears to relieve papilledema by filtering small quantities of cerebrospinal fluid into the orbit.
(13) Comments on the symptomatology, exploratory means and differential diagnosis with other sinusal or orbital conditions.
(14) The usual approach to the inferior orbit has been through a subciliary skin incision and dissection of a skin flap to the orbital rim.
(15) Active palpebral occlusion was retained by means of the orbital portion of the orbicularis muscle.
(16) Complications due to orbital or intracranial development of the osteoma are rare and demand neurosurgical treatment.
(17) A review of 104 patients with acute orbital cellulitis during the past decade showed that the frequency of hospital admissions for this disease has increased recently.
(18) Techniques borrowed for the correction of congenital craniofacial deformities and acute traumatic reconstruction have improved the quality of secondary post-traumatic orbital reconstruction.
(19) Follow up consisted of clinical investigation, laboratory evaluation with detailed thyroid function tests and complete ophthalmological assessments including A and B scan ultrasound and computerized tomography (CT) of the orbits.
(20) The advances in lid and orbital surgery are due to the improvements made in diagnostic equipment and to technical refinements.