ORIFACIAL 



) or with reference to the observer {subjective 



orientation). False orientation is observed in some 



- of monocular squinting paralysis, etc. (b) The 



homing instinct of animals. (^)The arrangement of 



in the imbedding-mixrure before sectioning. 



trifacial, or-if-a' -shal) [os, oris, mouth ; fades, face]. 

 Pertaining to the mouth and face. O. Angle, in 

 craniometry, the angle formed by the junction of the 

 plane passing through the masticating surface of the 

 superior maxilla with the facial line. 



Drifice (or'-if-is) [orificium ; os, oris, mouth ; facere to 

 make]. A mouth or opening. O., Abdominal, the 

 internal abdominal ring. O., Anal, the anus. O., 

 Cardiac. The same as CWw. O.,' Esophageal, 

 the perforation in the diaphragm for the esophagus. 

 O., Pyloric. The same as Pylorus. O., Tympanic, 

 the oval opening of the atrium into which the tym- 

 panic membrane is inserted. 



Jrificial yor-ifish'-al) [orificium, an orifice]. Per- 

 taining to an orifice of the body. O. Surgery, the 

 surgery of the orifices of the body. 



)rincium [pr-ifish' -e-um) [L.]. Orifice. O. epi- 

 ploicum. a synonym of Foramen of llinslcnu. O. 

 inf-indibuli, a synonym of Hdicolrema. 



)riform (pr'-iform) [os, oris, mouth ; forma, form]. 

 Having the shape of a mouth. 



Jriganum [o-rig / -an-um) [bpiyavov, marjoram]. Wild 

 marjoram. The leaves and stems of O. vulgare, with 

 properties due mainly to a volatile oil. It is a tonic, 

 stimulant, and carminative, and formerly was pop- 

 ularly used as an emmenagogue. Dose 3J-ij in infu- 

 sion. The oil is esteemed as an ingredient in liniments, 

 especially in veterinary practice. Most of the com- 

 mercial oil of origanum is in reality oil of thyme 

 [Oleum thy mi). The oil is also used in histology as a 

 clearing -fluid for stained specimens. 



Origin {pr , -ij-in) [origo, originis, beginning]. The 

 beginning or source of a muscle ; its more fixed at- 

 tachment, or that nearest the axis of the body. O., 

 Apparent. See Superficial. O., Deep, or Ental, 

 of a nerve, its origin in the cells of the nerve-center. 

 O., Superficial, or Ectal, of a nerve, the point 

 j at which it emerges from the brain or cord. 



Orinasal (p-'rin-a'-zal) [os, oris, mouth ; nast4S, nose]. 

 Pertaining to the mouth and nose. 



Orist [o'-rist) [os, oris, mouth]. A specialist in oristry. 



Oristry ipZ-ris-tre) [os, oris, mouth]. A term proposed 

 to designate the treatment, surgical, dental, or medi- 

 cal, of diseases of the mouth. 



Orleans (or-lenz'). Same as Annatto. 



Ormsby's Inhaler. See Anesthetic. 



Ornis \or'-nis) [bpvic, a bird]. In biology, the avi- 

 fauna of any region. 



Drnithic (or-nith'-ik) [bpvtdiKoc, of, or belonging to, 

 birds]. Avian ; of, or pertaining to, birds. 



Drnithin or'-nith-in) [bpvic, a bird], C 5 A 12 N 2 2 . A 

 base found in ornithuric acid. 



Ornithobiography [or-nith-o-bi-og / -ra-fe) [bpvic, bird ; 

 . life; ypadetv, to write]. The life-history of 



: birds. 



Ornithocephalous (pr-nith-o-sef '-al-us) [bpvic , a bird ; 

 Kzwifi], head]. In biology, shaped like a bird's 



i head. 



Ornithocoprus {or-nith-o-kop 1 'rus ) [bpvic, bird ; k6~- 

 poc, dung]. Guano. 



Ornithography (or-nith-og 1 '-ra-fe) [bpvic, bird; ypd- 



i petv, to write]. A description of birds. 



Ornithoid (or / -nith-oia') [bpvic, a bird ; eldoc, form]. 

 In biology, bird- like. 



Ornithologist [or-nith-ol' '-o-jist) [bpvic, bird ; s.byoc, 

 science]. One versed in ornithology.. 



Ornithology [or-nith-ol' '-o je) [bpvic, bird ; ~fJ>yoc, a 



941 » ORRHOSIS 



science]. The science of the nature and habits of 

 birds. 



Ornithomyzous {pr-nith-o-mV -zus) [bpvic, bird ; fii^eiv, 

 to suck] . Parasitic on birds. 



Ornithophilous {or-nith-off' -il-us) [bpvic, a bird ; 6i?.oc, 

 loving]. In biology, fertilized through the agency 

 of birds. 



Ornithotomist (or-nith-of '-o-mist) [bpvic, a bird; rouia, 

 a cut]. One versed in the anatomy of birds. 



Ornithotomy (or-nith-ot'-o-me) [bpvic, a bird ; ri/tveiv, 

 to cut] . In biology, the dissection of birds. 



Ornithuric (or-nith-u'-rik)[bpvic, a bird ; ovpov, urine]. 

 Pertaining to the urine of birds. O. Acid, Cj 9 H 20 NV,- 

 4 . An acid found in the dung of birds fed with 

 benzoic acid. 



Ornus [pr'-nus) [L.]. See Fraxinus. 



Oroanal ip-ro-a'-nal) [os, oris, mouth; anus, anus]. 

 Extending from the mouth to the anus. 



Orobechos [o-ro-bek' -os) [6po/3oc, a species of pulse ; 

 ijxoQy sound]. The crackling sound sometimes pro- 

 duced by pressure on the inner canthus of the eye. 



Orography (p-rog' -ra-fe) [bpoc, mountain ; ypdoeiv, to 

 write]. I. A treatise on the distribution and phy- 

 sical geography of mountain-ranges. 2. The same as 

 Orology. 



Orohydrography (pr-o-hi-drog 1 '-ra-fe) [bpoc, mountain ; 

 vdup, water; ypdoetv, to write]. A treatise on the 

 mutual relation of divides and drainage-basins. 



Orolingual [p-ro-lin' -gwal ) [os, oris, the mouth ; lin- 

 gua, the tongue]. Pertaining to the mouth and the 

 tongue. 



Oronasal [p-ro-na'-zal). See Orinasal. 



Oronosus (o-ron'-o-sus) [bpoc, mountain ; voaoc, dis- 

 ease]. A disease prevalent in mountain regions. 

 See Mountain Sickness. 



Oropharyngeal (p-ro-far-in' '-je-al) [os, oris, mouth; 

 oapvyij, pharynx]. Pertaining to, or situated in, the 

 orpharynx. 



Oropharynx [o-ro-far* -inks) [os, oris, mouth ; oaor; f , 

 pharynx]. The pharynx proper, situated below the 

 level of the lower border of the soft palate, as dis- 

 tinguished from the naso- pharynx. 



Oros {pr'-os) [bpoc, a mountain]. I. The upper part 

 of the foot. 2. A mountain. 



Orotherapy [pr-o-ther 1 '-ap-e) [bpoc, whey ; 6epa~eia, 

 treatment]. See Orrhotherapy. 



Oroya Fever {o-roi / -yah) [S. Amer.]. The febrile 

 stage of Verrugas, i/. v. 



Orpiment (or / -pim-ent) [auri pigmentum, golden pig- 

 ment]. A common name for arsenious sulphid, As,- 

 S,, also known as King's Yellozc: It is poisonous. 

 See Figments, Conspectus of. 



Orrhagogus (or-ag / -o-gus) [b'ppoc, serum ; ayeiv, to 

 lead]. Synonym of hyitragogue. 



Orrhochezia (or-o-ke 4 '-ze-ah) [b'ppoc, serum ; xK eiv > to 

 relieve oneself]. Serous diarrhea. 



Orrhocyst (or'-o-sist) [b'ppoc, serum; kvotic, cyst]. A 

 serous cyst. 



Orrhoid (or'-oid). Synonym of Serous. 



Orrhophallus (or-o-fal'-us) [bppoc, the end of the sac- 

 rum ; oa'/.?.6c, the penis]. A monstrosity with a penis 

 protruding from the sacral region. 



Orrhoposia (or-op-o f -ze-ah) [bppoc, whey ; -oaic, drink- 

 ing]. Whey-drinking. 



Orrhorrhagia (pr-or-a'-je-ah). Synonym of Orrhor- 

 rhea. 



Orrhorrhea (or-or-e / -ah) [bppoc, serum ; poia, a flow]. 

 An abnormally great flow of serum. Also, a watery 

 discharge ; rice-water discharges. 



Orrhos (or'-ros) [bppoc, serum]. Serum; whey. 



Orrhosis (or-o , -sis) [bppoc, serum]. The production ol 

 serum. 



i 



