OSTREOTOXISM 



397 



OXIDASE 



Ostreotoxism (os-tre-o-toks' '-izm) [borpcos, oyster ; ro^t- 

 kov, poison]. See Mytilotoxism. 



Othil \o-thil'). See Acetyl. 



Otitic (o-tit'-ik). Relating to otitis. 



itis. (See Illus. Diet.) O. intima. See O. laby- 

 rinthica (Illus. Diet.). O. media. (See Illus. 

 Diet.) Gull-Toynbee's Law: In otitis media 

 the cerebellum and lateral sinus are likely to be- 

 come involved by mastoid disease, while the cerebrum 

 is threatened by caries of the roof of the tympanum. 

 See Sign, folitzer's. O. m. mucosa, a chronic 

 inflammation of the tympanic mucosa attended by 

 mucous discharge into the cavity of the tympanum. 

 O. m. purulenta tuberculosa, purulent otitis media 

 with rapid destruction of the tympanic membrane due to 

 Bacillus tuberculosis. 



togenous (o-toj' '-en-us) \oic, the ear; yewav, to pro- 

 duce]. Originating in the ear. 



tohemineurasthenia (o-to-hem-i-nu-ras-the / -ne-ah) 

 [ru'f, the ear; f]ut, half; vivpov, nerve; aadevia, weak- 

 ness]. A condition in which hearing is limited exclu- 

 sively to one ear, without the evidence of any material 

 lesion of the auditory apparatus. 



tohysteroneurasthenia {o-to-his-tur-o-nu-ras-the* '- 

 ne-ali). The complex of auricular neurasthenia com- 

 bined with auricular hysteria. 



tomassage (o-to-mas-sahzh / ). Massage of the ear. 

 tomyasthenia (o-to-mi-as-the' -ne-a)i) [oi c, ear ; //re, 

 muscle; aodeveta, weakness]. I. Weakness of the 

 muscles of the ear. 2. Defective hearing due to a 

 paretic condition of the tensor tympani and stapedius 

 muscles. 



tonecrectomy {o-to-nc-krek' -tome). See Otqnecro- 

 nectomy (Illus. Diet.). 



toneurasthenia \o-to-ttu-ras-the / -ne-ah) [oir, the ear; 

 vei-pov, nerve ; acfiivtia, weakness]. A condition of 

 deficient tone of the auditory apparatus, 

 topolypus {p-to-pol'-ip-us). A polypus occurring in 

 the ear. 



tor (o / -tor) [off, ear]. Aural. 



orhinolaryngology {olo-ri-no-lar-in-gol' '-o-Je) [oic, 

 ear; pic, nose ; /o/n'};, larynx]. The anatomy, phy- 

 siology and pathology of the ear, nose and throat, 

 toscope. (See Illus. Diet.) O., Electric, a device 

 similar to the electric laryngoscope used for examina- 

 tion of the external meatus. 



totraumatoneurasthenia ( o-to-trau-mat-o-nu-ras- 

 the f -ne-ah). Otoneurasthenia due to trauma, 

 turia, Otury (o-tu' -re-ali , o-tu'-re) \oxc, ear ; ovpov, 

 urine]. A supposed urinary discharge from the ear. 

 uabai'n. (See Illus. Diet.) C^H^O,,. A glucosid 

 closely resembling strophanthin. It is obtained from 

 the wood of Acokanthera venenata, G. Don., and from 

 the wood of Carissa schimperi, RBr. Introduced into 

 the stomach it is non-poisonous, but taken into the 

 blood directly it is extremely virulent ; -£■- of a grain 

 (o.ooioi gm. ) being a lethal dose to man. It acts 

 upon the heart and respiratory centers. As a local 

 anesthetic it has 10 times the power of cocain. It has 

 been recommended for whooping-cough in doses of 

 TttW g r - (O.000065 gm.), repeated with caution. Cf. 

 Acot antherin. 



Oudeterospore (oo-de / -ter-o-spor) [oiAerepoc, neither of 

 the two; airopoq, spore]. E. R. Lankester's term 

 (1900) for schizont [cj. v.). 

 ! Outpatient 1 outpa'-shent). A hospital patient treated 

 without the walls. 



Ovadin (o'-vad-in). A proprietary preparation of the 

 ovaries of animals containing iodin. 



Ovalbumin (o-val'-bu-mhi). The albumin, or more 

 correctly the mixture of albumins, of the white of egg ; 

 its composition is not definitely established. 



Ovaraden \o-var-ad' -eri). An organo-therapeutic pre- 

 paration from the ovaries of animals ; used as a nervine. 

 Dose, 3 to 6 gm. daily. 



Ovariin \o-var'-e-in). An organo-therapeutic prepara- 

 tion made from the ovaries of cows : used in ovarian 

 disorders. Dose, I—2.5 S m - 3 t' mes daily in pills. 



Ovarine {o-var-en'). The sterilized extract of the 

 ovaries of the pig ; used in diseases of women, ste- 

 rility, etc. 



Ovarioepilepsy (o-va-re-o-ep-il-ep-se). See Hystero- 

 epilepsy (Illus. Diet). 



Ovariosalpingectomy. See Oophorosalpingectomy. 



Ovariostomy [o-va-re-os / -to-me). See Oophorostomy. 



Ovaserum (o-va-se'-rum). The serum of an animal 

 which has acquired specific precipitating action by the 

 inoculation of egg-albumin and may be used as a test 

 for egg-albumin. Cf. Lactoserurn. 



Over. (See Illus. Diet.) O.bite, lack of coaptation 

 of upper and lower teeth. O. extension, extension 

 of a joint beyond the normal limit. 



Ovidia (o-vid'-e-ah). A genus of plants of the order 

 Thymelceacece. O. pillo-pillo, Meissn., a shrub native 

 of Chili, where it is used as an emetic and purgative. 

 Its use is attended with danger. In regular practice it 

 is used as a substitute for mezereon and sometimes 

 improperly referred to as Daphne pillu. 



Oviprotogen (o-vi-pro'-to-jen). A proprietary dietetic, 

 said to be a methylene compound of albumin, given in 

 milk to infants, and used hypodermically also. 



Ovocenter (o-va-sen'-ter) [wov, egg; nivrpov, center]. 

 The centrosome of the ovarian egg during fertilization. 



Ovocyte (cZ-vo-sil). The same as Oocyte. 



Ovoglobulin (o-vo-glol/-u-lin) [ovum, egg; globulin^. 

 The globulin of white of egg ; according to Corin and 

 Berard, there are two in albumen, one coagulating at 

 57. 5° C. and the other at 67 C. 



Ovogonium. See Oogonium. 



Ovolecithin {o-vo-les' '-ith-in). See Lecithin (Illus. 

 Diet.). 



Ovomucin (o-vo-mu'-sin). A glycoproteid described 

 by Osborne and Campbell as composing about 7% of 

 the proteid matter of egg white. Cf. Ovalbumin, 

 Ovomucoid, Conalbumin. 



Ovomucoid {o-vo-mu'-koid). A glycoproteid obtained 

 by Osborne and Campbell from egg white, after all 

 the proteids coagulable by heat had been separated, 

 being precipitated by ammonium sulfate solution. 

 Cf. Ovalbumin, Ovomucin, Conalbumin. 



Ovos (</-rw). A proprietary substitute for meat extract 

 prepared from yeast. 



Ovovitellin (o-vo-vit'-el-in). A proteid, probably a 

 nucleoalbumin, contained in the yolk of egg ; a white 

 granular substance soluble in dilute acids, alkalis, and 

 a io r £ solution of common salt. 



Oxalism (ohs'-al-izm). Poisoning by oxalic acid or 

 potassium binoxalate. It is characterized by gastro- 

 enteritis with nephritis, collapse, cyanosis, mydriasis, 

 labored breathing and dyspnea. 



Oxalium (oks-a'-le-um). Potassium binoxalate. 



Oxamethane {oks-am-eth'-an). C 4 H 7 NO r The ethyl 

 ether of oxamic acid, obtained from oxalic ether by 

 action of ammonia ; soluble in alcohol ; meltsat 1 15 C. 

 Syn. Acetyloxymethane. 



Oxaphor ioks'-a-for). A 50^ alcoholic solution of oxy- 

 camphor; used in dyspnea. Dose, 15 TT\, (i.ogm. ) 

 2 or 3 times daily. 



Oxatyl (oks'-at-il). See Carboxyl (Illus. Diet.). 



Oxid. (See Illus. Diet.) O., Acid, an oxid which 

 produces an acid when combined with water ; an an- 

 hydrid. 



Oxidase \,oks'-id-az). A name given by Lillie to the in- 

 herent substance of the living cell-nucleus that pos- 



