

ORARIAXS 



937 



Orarians {or-ar' -e-anz) [orarius, of, or belonging to, 

 the coast]. In ethnology, a collective term proposed 

 by Dall for the Aleuts and people of Innuit stock, as 

 indicative of their coastwise distribution and as desig- 

 nating a well-defined race. 

 Orbicular [pr-bikf -u-lar) [orbiculus, dim. of orbis, cir- 

 cle]. Having a circular shape. A term applied to 

 the circular muscles of the eyelids and the mouth. O. 

 Bone. See Bones, Table of. 

 Orbicularis (or-bik-u-la'-ris). See Muscles, Table of. 

 Orbiculate {or-bik'-u-ldt). Same as Orbicular. 

 Orbit {or' -bit) [orbita, from orbis, circle]. The bony 

 pvramidal cavity in which the eyeball is suspended. 

 n bones enter into its formation, its somewhat 

 determinate sides being called the roof, the floor, 

 : inner and outer walls. 



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The Orbits. 

 i. Anterior orifice of nasal fossae. 2. Anterior extremity of 

 inferior turbinated bone. 3. Malar bone. 4. Orbital cavity. 

 5. Lacrymal fossa, at base of which maybe seen the line of 

 union of the ascending process of the superior maxilla with 

 the os unguis. 6. Os planum, forming with this bone the 

 internal wall of the orbit. 7. Optic foramen. 8. Sphenoid 

 fissure. 9. Spheno-maxiKary fissure, continuous posteriorly 

 with the preceding. 10. Upper portion of the great wing 

 of the sphenoid, n. Squamous portion of temporal. 12. 

 Anteroinferior angle of parietal. 13. Part of frontal which 

 contributes to form the temporal fossa. 14. Mastoid process. 

 15. Styloid process. 



Orbita {or' -bit-alt) [orbis, a circle, orbit : //., Orbitcf\. 

 The same as Orbit. 



Orbital {or'-bit-al) [orbita, from orbis, circle]. I. 

 Pertaining to the orbit. 2. The orbital portion of the 

 orbicularis palpebrarum. O. Arch, the upper margin 

 of the orbit. O. Breadth, in craniometry, the dis- 

 tance between the middle points of the inner borders 

 of the orbits. O. Fascia, the capsule of Tenon. 

 O. Fissure. See Fissures, Table of. O. Fossa, 

 the cavity of the orbit. O. Height, in cran- 

 iometry, the greatest vertical width of the exter- 

 1 opening of the orbit. O. Index. See Index. 

 Plane. See Plane. O.Plate: I. That part of 

 e frontal bone helping to form the roof of the orbit. 

 2. That part of the ethmoid bone helping to form the 

 inner wall of the orbit O. Point, the lowest point 

 on the inferior margin of the orbit. O. Process : 1. 

 The orbital portion of the malar bone. 2. The orbital 

 portion of the palate bone. O. Ridge, the free edge 

 of the nasal process of the superior maxilla. O. 

 Surface, that portion of the superior maxilla that 

 helps to form the floor of the orbit. O. Vault, the 

 roof of the orbit. 

 Drbito- (or'-bit-o-) [orbita, orbit]. A prefix denoting 

 relation to the orbit. O. -basilar, both orbital and 

 basilar. O.-b. Angle, the angle formed between 



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ORCHIDOCATABASIS 



the line continuing the axis of the orbit and one 

 tangent to the lower border of the inferior maxilla. 

 O. -malar, pertaining to both the orbit and the malar 

 bone. O.-m. Index, in craniometry, the ratio exist- 

 ing between the bizygomatic diameter of the face, 

 and the superior facial diameter, the latter being taken 

 as 100. O. -nasal, pertaining to both orbit and nose. 

 O. -occipital, pertaining to both orbit and occipital 

 bone. O.-o. Angle, in craniometry, the angle formed 

 between the optic axis and the plane of the foramen 

 magnum. O. -ocular, pertaining to both orbit and 

 eye. O. -palpebral, pertaining both to the orbit and 

 the eyelids. O. - sphenoid : 1. Pertaining both to the 

 orbit and to the sphenoid bone. 2. The lesser wing 

 of the sphenoid bone ; in some animals, and in early 

 human life, it is a separate bone. 

 Orbitocele {or'-bit-o-sel) [orbita, orbit ; Ktj/.rj, tumor]. 

 I. A tumor of the orbit. 2. The same as Exoph- 

 thalmos. 

 Orceic Acid {or'-se-ik). Synonym of Orcein. 

 Orcein {or'-se-in) [Orcus, Pluto, from its dark color], 

 1 C.H-NO3. A dark-red substance derived from orcin. 

 Orcheitis {or-ke-i'-tis). Synonym of Orchitis. 

 Orchella {or-kel'-ah). See Orchil. 

 Orchellin {or-kel'-in) [after Oricellari, a chemist]. A 



purple dye found in Roccella tinctoria. 

 Orchemphraxis {or-kem-fraks' -is). Same as Orchid- 



emphraxis. 

 Orcheocele {or'-ke-o-sel). See Orchiocele. 

 Orcheodesmosarcoma {or' -kc-o-dez' -mo-sar-ko' -mah ) 

 [opxea, scrotum ; diauoc, bond ; oapi;, flesh ; bua, 

 tumor]. Scrotal elephantiasis. 

 Orcheoplasty {or 4 '-ke-o-plas-te). See Orchioplasty. 

 Orcheotomy (or-ke-ot'-o-me). See Orchotomy. 

 Orchestromania {or-kes-tro-ma' -ne-ah) [bpxeioftat, to 

 dance; uavia, madness]. Dancing mania; chorea, 

 or St. Vitus' dance. 

 Orchi-, less correctly Orchid- (or'-ke-, or'-kid-) [bpxic, 

 testicle]. A prefix signifying connection with, or re- 

 lation to, the testicles. 

 Orchialgia {or- ke-al' -je-ah) [bpx^, testis ; a/.yoc, pain). 



Neuralgic pain in the testicle. 

 Orchic {or'-kik) [bpxic, testicle]. Pertaining to the 



testicle. 

 Orchichorea {or-kik-or-e 1 -ah) [bpxtc, testicle ; x°P cia J 

 dance]. Irregular movements of the testicle due to 

 contraction of the cremaster muscle. 

 Orchid {or'-kid) [bpxic, testicle]. Any orchidaceous 

 plant ; a plant of the orchis family or order. Orchids 

 are of many species and genera, and are mostly tropi- 

 cal. Salep and vanilla are produced by plants of this 

 order. Faham, cypripedium, and a few others are em- 

 ployed in medicine. 

 Orchidalgia {or- kid-al' -je-ah). Synonym of Orchialgia. 

 Orchidatonia {or- kid -at- o'-ne-ah) [bpxic, testicle; 

 arovla , atony] . Atony of the testicle ; laxness of the 

 testicle. 

 Orchidatrophia {or-kid-at-ro'-fe-ah) [bpxic, testicle ; 



hrpnoia, atrophy] . Atrophy of the testicle. 

 Orchidauxe {or-kid-aroks'-e) [opx i C, testicle; al:r/, 



growth]. Hypertrophy of the testicle. 

 Orchidectomy {or-kid-ek' -to-me) [bpxic, testis ; iKrouTj, 



excision]. Surgical removal of a testis; castration. 

 Orchidemphraxis (or-kid-em-fraks'-is) [bpxic, testicle ; 

 iu6pa^ic, stoppage]. Obstruction of the vessels of 

 the testis. 

 Orchidion {or-kid' -e-on) [dim. of baxtc, testicle]. A 



small testicle. 

 Orchiditis (or-kid-i'-tis). Synonym of Orchitis. 

 Orchidocatabasis {or-kid-o-kat-ab' -as-is) [bpxic, testi- 

 cle ; naraiactq, a going down]. Descent of the tes- 

 ticle into the scrotum. 



