SLPHILIS 



1332 



SITOPHOBIA 



Transverse. S. transversus pericardii, an opening 

 connecting the prolongation of the pericardium which 

 covers the pulmonary artery and the aorta with that 

 covering the auricles. S. triangularis. See S., 

 Superior Longitudinal. S. tuberculi (ossis meta- 

 carpi), a depression upon the external surface of a 

 metacarpal bone just above its distal articular sur- 

 face. S. tympani. See Sulcus tympani. S. of 

 the Urethra. See Bulbi urethra. S., Urino-genital, 

 S., Urogenital: I. The canal or duct into which, 

 in the embryo, the Wolffian ducts and the bladder 

 empty, and which opens into the cloaca. 2. In com- 

 parative anatomy, the common receptacle of the geni- 

 tal and urinary ducts. S. urino-genitalis, S. uro- 

 genitalis. See S., Urino-genital. S., Uterine, the 

 veins of the uterus when in a state of dilatation due 

 to the enlargement of the organ, as in pregnancy. S., 

 Utero-placental, slanting venous channels which is- 

 sue from the placenta at its uterine surface by piercing 

 the decidua serotina, and serve to convey the maternal 

 blood from the intervillous lacunae back into the 

 uterine veins. S. of the Uterus. See S., Uterine. 

 S. of Valsalva, dilatations of the aorta and pul- 

 monary artery opposite the segments of the aortic 

 and pulmonary valves. S. valsalvae. See 6". of 

 Valsalva. S., Valvular. See S. of Valsalva. S. 

 of a Vein, a pouch-like enlargement of a vein on the 

 cardiac side of its valves. S. venae coronariae (magna 

 proprius). See S. , Coronary [of the heart). S. venae 

 jugularis. See S. of the Jugular Vein. S. venae 

 portae, the sinus of the portal vein. S. venarum 

 cavarum, the right auricle of the heart. S. venosi 

 durae matris. See S., Cranial. S. venosus, the 

 canal of Schlemm. See S., Venous. S. venosus 

 anterior. See Vena mediana medulla spinalis anterior. 

 S. venosus cordis. See Atrium. S. venosus 

 corneae. See Canal of Schlemm. S. venosus hovii, 

 a ring-like anastomosis of the venae vorticosae. S. 

 venosus iridis. See Canal of Schlemm. S., Venous, 

 one conveying venous blood. See also Meatus venosus. 

 S., Vertebral, veins within the bodies of the vertebrae. 

 S. vesicae urinariae. See Pecessus vesica urinaria. 



Siphilis (sif'-il-is). See Syphilis. 



Sipho (si'-fo) [a'upuv, tube]. A syringe. 



Siphon (si' -fon~) [oi<f>uv, a tube]. I. A tube bent at an 

 angle one arm of which is longer than the other, for 

 the purpose of transferring a liquid from one vessel to 

 another. Trocars and aspirating instruments con- 

 structed on this principle are called S. -trocars and 

 S. -aspirators. 2. In biology, a tubular organ for the 

 passage of some fluid, as the inhalent and exhalent 

 siphons of certain molluscs, or the sucking- tube of 

 various parasitic arthropods. 



Siphonage (si'-fon-aj) [ol<puv, a siphon]. The action 

 of a siphon, whether in drainage of wounds or in 

 house-plumbing. 



Siphonal (si' -fon-al) [aiyuv, a tube]. Pertaining to or 

 resembling a siphon. 



Siphonate (si'-fon-at) [oi<puv, tube]. In biology, pro- 

 vided with a siphon. 



Siphonet (si'-fon-et) [aityuv, a tube]. In biology, one 

 of the pair of excretory tubes on the upper surface of 

 the abdomen of a plant-louse (Aphis). It exudes 

 honey-dew. 



Siphoniferous (si'-fon-if'-er-us) [mcjxov, tube ; ferre, to 

 bear]. Provided with siphons. 



S'vphoniform(si f -fon-iform)[cti<l)uv, tube ; forma, form]. 

 Shaped like a siphon. 



Siphonium (si-fo' -ne-um) [otyuv, a tube, pipe : //. , 

 Siphonia\ In biology, a special bony tube in some 

 birds, which conducts the air from the tympanum to 

 the articular piece of the mandible. 



Siphonoma (si - fon - o'- mah) \oi<j>uv, siphon ; o/ic 



tumor]. A peritoneal cylindroma, sometimes calle 



Henle 's tubular tumor. 

 Siphonoplax (si-fon' ' -o-plaks) [aicpuv, a tube, pipe ; ttacl 



a plate]. In biology, one of the calcareous plates whic 



form a tube about the siphons of boring mollus* 



(Pholadida) . 

 Siphosome (si'-fo-som) [ai^wv.atube ; ao>/ja, the body 



In biology, that portion of a siphonophoran stock d 



voted to obtaining food ; the feeding-polyps. S< 



Nectosome. 

 Siphuncle (si' -fung-kl) [oi<pov, a tube]. In biology, 



small siphon, as the siphonet or honey-tube of a plar 



louse, or the funnel of a cephalopod. 

 Siphuncular (si-fung' -ku-lar) [oityuv, siphon]. Pe 



taining to a siphuncle. 

 Siphunculate (si-fung' -ku-lat) [atyuv, tube]. In bk 



ogy, provided with a siphuncle. 

 Siphunculus (si-fung' -ku-lus). Same as Siphuncle. S 



Syringe. 

 Siren (si'-ren) [asipyv, a mythic being who enticed 



her singing]. I. An instrument for studying t 



qualities and properties of musical sounds. 2. Sai 



as Sirenomelus . 

 Sirenomelia (si - ren - o - me'- le - ah) . Same as SirA 



omelus. 

 Sirenomelus (si-ren-om' -el-us) [aeipi/v, mermaid ; p,D. I 



limb]. A form of single autositic monster of ij 



species symelus, in which the lower extremities ; 



intimately fused, without the trace of a foot, or, 



most, with but a single toe. 

 Siret's Disinfectant. A disinfecting mixture < 



ing copperas loo parts, zinc sulphate 50 parts, sal 



dust 40 parts, coal-tar 5 parts, and rapeseed-oil 



parts. 

 Siriasis (sir-i'-as-is) [ceipiog, the dog-star]. An 1 



name for a supposed attack of sideration, resembl: 



sunstroke, and caused by the influence of the d<| 



star. 

 Sirloin (sir' -loin) [Fr. , surlonge, a sirloin]. The mil- 

 iar mass from the loin of animals, particularly cattll 

 Siro (si'-ro) [L.]. See Comedo. An old name for c 



tain parasites. See Parasites (Animal), Tabic oj. | 

 Sirup (sir' -up). See Syrup. 

 Sisal Hemp (se'-sal). See Hemp. 

 Sister (sis'-ter) [ME., sister, sister]. A female 1 



in the first degree of descent. S. -cells, cells pV 



duced by the fission or gemmation of any gis 



mother-cell; daughter-cells. 

 Sit [ME., sitten, to sit]. To occupy a seat. 

 Site (sit) [situs, place]. Situation. S., Placen', 



the area to which the placenta is attached. 

 Sitfast. In farriery, a piece of dead tissue in the sp 



which would be thrown off but that it has formed tj» 



connections with the fibrous skin beneath, or with 6 



deeper tissues, and is thus bound in its place a» 



persistent source of irritation. 

 Sitiology (sit-e-ol'-o-je) [oiriov, nourishment; 



a treatise]. The science of nourishment or dietet 

 Sitiomania (sit-e-o-ma' -ne-ah). See Sitomania. 

 Sitiophobia (sit-e-o-fo'-be-ah) [oiriov, food; ^<5,t» 



dread], A form of insanity marked by abhorrcl 



of food. 

 Shis morbosa (si'-tis-mor-bo'-sah) [morbid thirl- 



Synonym of Polydipsia. 

 Sitology (si-lol'-o-jc). See Sitiology. 

 Sitomania (si-to-ma' -ne-ah) [oiroc, food; //avia, trf- 



ness]. A mania occurring periodically, charactenl 



by loss of volition and an overwhelming desire! 



partake of food to an unlimited extent. 

 Sitophobia (si-to-fo'-be-ali) [oiroc, food; 0o/?oc , fcfl 



Morbid or insane aversion to food. 



