OLIVIFUGAL 



391 



OORODEIN 



plate dorsad of the olive. Syn., External accessory 

 olivary nucleus; Lateral accessory olivary nucleus ; 

 Superior accessory olivary nucleus ; Ger. aussere A'eben- 

 olive ; Fr. Noyau juxta-olivaire poste 1 o-externe. 3. A 

 similar but smaller gray plate dorsad of the pyramid. 

 Syn., Internal accessory olivary nucleus ; Median in- 

 ternal olivary nucleus ; Nucleus of the pyramid ; N. 

 pyramidalis ; Anterior olive. O., Anterior. See 0. , 

 Accessory (3). O., Inferior, the olivary body. O., 

 Superior, O., Upper. See Nucleus, Olivary, 

 Superior. O., Superior, of Luys, the tegmental 

 nucleus. 



Olivifugal (ol-iv-if-u-gal) [olive; t'ugere, to flee]. 

 Turned or moving from the olive. 



Olivin (oi'-iv-in). A substance obtained by Braconnot 

 from salicin by action of sulfuric tacid. 



Olivipetal {ol-iv-ipZ-et-al) [olive; petere, to seek]. 

 Toward the olive. 



Oly (o'-le). The scum on molten metal. 



Olutkombul. See Abroma angusta, L. 



Omal (o / -mal). See Trichlorphenol (Illus. Diet.). 



Omateal {o-mat'-e-al). Relating to the omentum. 



Omentosplenopexy io-men-to-splen'-o-peks-e). Omen- 

 topexy followed by splenopexy to develop complement- 

 ary circulation in certain hepaticosplenic lesions. 



Omentum. (See Illus. Diet.) O., Haller's Colic, 

 a process of the upper right border of the greater 

 omentum which may become adherent to the testis 

 during fetal life and be included in the sac of an in- 

 guinal hernia. O. osseum. See Periosteum (Illus. 

 Diet. ). O., Pancreaticosplenic, a fold of peritoneum 

 uniting the tail of the pancreas with the lower part of 

 the inner surface of the spleen. 



Omocephalus (o-mo-sef'-al-us). See Omacepkalus 

 (Illus. Diet.). 



(om-fal-o-dinr'-e-ah). See under 



Omphalodymia 

 Somatodymia. 

 Omphalotripsy 

 tetv, to rub]. 



(om-fal-o-trip' -se) [buod/.oc, navel ; 

 Separation of the umbilical cord by 

 a crushing instrument. 



Onage, Onaye. The African name for the arrow-poison 

 obtained from seeds of Strophanthus liispidus, D. C. 



Oncography (ong-kog'-raf-e) [6}koc, a swelling; 

 ypafeiv, to write]. The recording of the measure- 

 ment of tumors by an oncometer. 



Oncosis. (See Illus. Diet.) 3. Tumefaction. 



Oneiric, Oniric {o-ni'-rik) [ovttpos, a dream]. Relating 

 to dreams ; attended by visions. 



Oneirism [o-ni'-rizm) [bveipoc, a dream]. A condition 

 of cerebral automatism analogous to the dream state, 

 as a dream prolonged to the waking period. 



Oniomania (o-ne-o-ma'-ne-ah) [uvioc, to be bought; 

 uana, madness]. A mania for spending money. 



Onkinocele [ong-kin'-o-sel) \o\kck, swelling; Ic, a 

 fiber; ki,'/tj, tumor]. Inflammation of the tendon- 

 sheaths attended by swelling. 



Ononetin (o-non'-et-in). C M H M O s . A dissociation- 

 product of onospin. 



lonid [o-uo'-nid). C lg H K O g . A neutral principle 



contained in the root of Ononis spinosa ; a yellow, 



slightly bitter powder soluble in water and alcohol. 



Syn. , Ononis-glycyrrhizin. 



lonin (o-no'-nin). C^H^O^, a glucosid isolated by 



Reinsch from the root of Ononis spinosa, L. 

 lonis io-no'-nis) [oror, an ass]. A genus of legumin- 

 ous plants. O. spinosa, L. , rest-harrow, a shrub of 

 Europe. The diuretic root is used in dropsy and gout. 

 Kmisglycyrrhizin (o-no-nis-gli-sur-i'-zin). See 

 Ononid. 



lospin (o-nos / -pin). CjjHjjO,,. A dissociation- 

 product of ononin by action of baryta-water with heat, 

 lychexallaxis {on-ik-eks-al-aks' -is) [ort\f, nail ; 



f£d/./.af/r, a degenerating]. Degeneration of the 

 nails. 



Onychogram {on' -ik-o-gram) [ovv£ , nail ; ypaQeiv, to 

 write]. The record of the variations in blood-pressure 

 by an onychograph. 



Onychograph (on'-ih-o-graf) [6rr£, nail ; ypaoeiv, to 

 write]. An instrument devised by Max Herr for 

 recording the variations in blood-pressure in the capil- 

 laries of the tips of the fingers. It consists for the 

 most part of the sphygmograph so arranged that the 

 pelotte can be brought against the finger resting upon 

 a hard surface. 



Onychography {on-ik-og' -raf-e). The tracing of the 

 pulse in the smallest vessels by means of en instrument 

 placed on the nail. 



Onychogryphosis {on-ik-o-gri-fc/ -sis). See Onycho- 

 griposis (Illus. Diet.). 



Onychoma {on-ik-e'-mah). A tumor of the nail-bed. 



Onychophagist (on-ih-of '-aj-ist) [6» s c , nail ; o«;.fiv, 

 to eat]. One addicted to biting the finger-nails. 



Onychophosis {on-ik-o-fo* -sis). See Onychyposis (Illus. 

 Diet). 



Onychorrhexis (on-ikor-eis'-is) [orrf, nail ; pi;$ic, 

 rupture]. The splitting of the nails. 



Onychosis. (See Illus. Diet. ) O. gryposis, onycho- 

 gryposis. O. incrassata. hyperonychosis. O. lap- 

 sus, onycholysis. O. mollities, softening of the nails. 

 O. pterygium. See Pterygium unguis (Illus. Diet.). 



Onyxis. (See Illus. Diet.) O., Retroungueal, ony- 

 chia originating at the root of the nail. 



Oocyan (o-o-si'-an) [Ltor, egg ; niavoc, a dark -blue 

 substance]. Of Sorrjy, the green or blue coloring- 

 matter of eggshells of birds ; found to be partly 

 biliverdin and partly a blue derivative of bile-pigments. 



Oocyst (o'-o-sist) [uov, egg; kiotic, bladder]. Applied 

 by some writers to the cysts in which the vermicules of 

 the malaria parasite encyst themselves. The term is 

 misleading ; spore cyst is preferable. 



Oocyte {(/-o-stt) [iooi; egg; ni-roc, cell]. The ovarian 

 egg-cell before the formation of the polar bodies ; also 

 written ovocyte. 



Oogonium. (See Illus. Diet.) 2. The primordial 

 mother-cell which gives rise to the ovarian egg and its 

 follicle. 3. The descendants of the primordial germ- 

 cell from which ultimately arise the oocytes (Boveri) ; 

 also writen ovogonium. 



Ookinete (o-o-hin'-et) [u6r, egg; KtvetP, to move]. See 

 Oocyst. 



Oophoria (o-o-for f -e-ah) [u6v, egg; pipeiv, to bear]. 

 Barnes' term for hysteria. 



Oophorin (o-of'-or-in). An organotherapeutic prep- 

 aration made from the ovaries of cows and hogs. 



Oophoritis. (See Illus. Diet.) O. serosa, Olshausen's 

 term for a variety of inflammation mostly described as 

 edema of the ovary. It is said to be produced by 

 gonorrhea and pelvic inflammation or to follow fevers 

 and mumps. The ovaries are enlarged, swollen, 

 smooth, edematous, with no folds or scars. They are 

 heavy and likely to become prolapsed. [Roberts.] 



Oophorocystosis (o-o-for-o-sist-o'-sis) \l>6v, an egg; 

 popth', to bear ; kvotis, bladder]. The formation ot 

 ovarian cysts. 



OophoTohysteTectomylo-o-for-o-his-lur-ei'-to-we) [l>6\ , 

 egg; oepeir, to bear; iaripa, womb; enroiiy, excision]. 

 Removal of the uterus and ovaries. 



Oophorosalpingotomy ( o-o-for-osalpin-goi 1 '-o-me | 

 [Lor, egg; Ofpf/r, to bear; ca'/.m):, tube; reuien; to 

 cut]. The surgical removal of the ovary and tube. 



Oophorostomy (o-o-for-os / -to-me) \I061; egg; oeoetr, 

 to bear; aroua, mouth]. The establishment of an 

 opening into an ovarian cyst for drainage. 



Oorodein [o-o-ro' •de-in') [itov, egg; podeoc, of roses]. 



