

SEMPERVIRENT 



1315 



SENSITIVIZATION 



ISenec 

 s 



3?' 



transferred from one to another of a series of alcohols, 

 until it reaches 96 per cent, to 9S per cent., the object 

 being to remove all the water. From the strong 

 alcohol it is transferred to spirit of turpentine, where 

 it remains until thoroughly impregnated, after which it 

 is simply dried in the air, when it will be found to have 

 a soft kid-like texture, not easily broken. The various 

 organs can now be painted suitable colors and the pre- 

 paration labeled for use. 



Sempervirent (sem-per-vi 1 '-rent) [semper , always; virere, 

 to be green]. Evergreen. 



Senary (sen'-ar-e) [senarius, consisting of six each]. 

 In sixes. 



Seneca Snake-root. See Senega. S. Oil, Petroleum 

 (so-called because found near Lake Seneca). 



Senecin (sen'-es-in) \_senecio, groundsel]. A precipi- 

 from a tincture of Senecio gracilis ; diaphoretic, 

 menagogue, febrifuge, pectoral, tonic. Dose 1 to 

 _ grains. 



Senecio (se-ne'-se-o) [senex, an old man]. Groundsel, 



!i genus of composite-flowered plants, said to contain 

 )6o species, many of them medicinal. S. aureus, 

 see Life-root. S. gracilis, a slender species, gener- 

 illy regarded as a variety of S. aureus. S. jacobaea, 

 ■agwort, or ragweed, tonic and astringent. 

 nectus (se-nek'-tus) \jenex, old]. Old age. 

 Senega (sen'-e-ga) [L. ; gen., Senegce\ The root of 



Wolygala senega (called also Seneca snake-root), with 

 operties due to a glucosid, senegin (or polygalin), 

 jjH^O^. It is expectorant and diuretic ; in large 

 doses a gastro-intestinal irritant, and is useful in bron- 

 chitis, asthenic pneumonia, asthma, etc. S., Ab- 

 stractum. Dose gr. v-x. Unof. S., Ext., Fid. 

 Dose rr^x-xx. S., Infus. (B. P.) Dose £j-ij. S., 

 Syr., contains fid. ext. senega 200, ammonia-water 5, 

 sugar 700, water q. s. Dose 3J-ij. S., Tinct. 

 (B. P.) Dose 3 j-ij. 



Senegal-root (sen'-e-gal-rilt). The root of Cocculus 

 bakis. 



Senegin (sen'-e-gin) [senega, senega]. An amorphous 

 glucosid obtained from Senega. It is soluble in water, 

 making a frothy solution, and is sternutatory. It con- 

 tains sapogenin and sugar. 



Senescence (se-nes' '-ens) [senex, old]. The condition 

 or time of growing old. Senility. 



Senile (se'-nil ) [senilis, old]. Pertaining to or having 

 the nature of old age. Arcus senilis. See Amis. 

 S. Chorea. See Paralysis agitans. S. Gangrene. 

 Gangrene. 



Senility (se-nii'-it-e) [senex, old]. The weakness and 

 decrepitude characteristic of old age. 



Senn's Bone-plates. [After Nicholas Senn, surgeon.] 

 Plates of decalcified bone used in intestinal anasto- 

 mosis. S.'s Test, the introduction of hydrogen-gas 

 into the bowel through the rectum, for the detection 

 and localization of an abnormal opening. 



Senna (sen'-ah ) [Ar., sena, senna]. The leaflets of 

 Cassia acutifolia and C. angustifolia. Senna contains a 

 complex glucosid, cathartic acid (C 180 H 19 . 2 N,SO 82 ), and 

 other extractives. It is an excellent cathartic for 

 children and infants. S., American. See Cassia 

 marilandica, S., Confectio, senna 10, oil of corian- 

 der 5, cassia fistula 16, tamarind 10, prune 7, fig 12, 

 ir 55, water q. s. Dose 3J-ij. Known as " Tamar 

 Indien" and " Tropical Fruit Laxative." S., Ext., 

 Fid. Dose 3J. S., Infus., (B. P.) Dose gj-ij. 

 S., Infus., Comp., " black draught," senna 6, manna, 

 magne-ium sulphate aa 12, fennel 2, water loo parts. 

 Dose 3J-iij. S., Mist., Comp. (B. P.) Dose 

 j. S., Syr., senna 250, oil of coriander 5, alcohol 

 1 5'->, sugar 700, water q. s. Dose Zss-ij. S., Tinct. 

 (B. P.) Dose sj-iv. 



Sennacrol (sen' -ak-rol)[hx. , sena, senna ; acris, sharp]. 

 A bitter principle obtained from senna. 



Sennapicrin (sen-ap-ik' '-rin) [Ar., sena, senna ; ttik/joc, 

 bitter]. An insoluble bitter principle obtained from 

 senna. 



Sennine (sen' -in) [after Nicholas Senn, surgeon]. A 

 proprietary preparation described as a chemically pure 

 product of boric acid and phenol. It is a fine, white 

 powder, odorless, slightly astringent, and of sweetish 

 taste. It is antiseptic, antizymotic, bactericidal, deo- 

 dorant, and disinfectant. 



Senocular (seti-ok'-u-lar) [sex, six ; oculus, an eye]. 

 In biology, having six eyes. 



Sensation (sen-sa'-shun) [sensatio ; sentire, to feel]. 

 The cognizance or perception of an impression com- 

 ing from an external source by means of the peripheral 

 organs of sensation. 



Sense (sens) [sensus ; sentire, to feel]. The faculty of 

 the nervous system whereby impressions of the ex- 

 ternal world are received by the mind. Organs of 

 the Senses are those of touch, taste, smell, hearing, 

 and sight. S.-body, a peripheral sense-organ. S.- 

 capsule, the hollow cup-like receptacle of a peripheral 

 sense-organ. S.-club. See Rkopaiium. S. -epithe- 

 lium, a tract of epithelium having some specialized 

 function of sensation. S. -filament, the thread-like 

 peripheral termination of a sensory nerve-fiber. S.- 

 organ, the peripheral termination of a sensory nerve. 

 S. -scale. See Squama rhopalaris. S.-seta, the 

 bristle-like termination of a peripheral sensory nerve- 

 fiber. S. -shock, a condition observed in hysteric 

 women and overworked men, and occurring at the 

 moment of waking from sleep. A sensation like 

 an aura rises from the feet or hands, and, passing 

 upward to the head, disappears in the sense of a blow 

 or shock, or of a bursting in the head. It is of no 

 serious significance. S. -sinus, one of the antra- 

 rhopalaria ; a hollow containing a compound sense- 

 organ, or rhopalia, q. v. 



Sensibility (sen-sib-il'-it-e) [sensibilitas\ The capa- 

 bility of receiving and transmitting impressions, and 

 of being conscious of them. S., Organic, the capa- 

 bility of transmitting and receiving impressions with- 

 out being conscious of them (Bichat). S., Range 

 of. See Fechner's Law. S., Transference or 

 Externalization of. See Sensitization. 



Sensible (sen'-sib-l) [sensibilis~\. Perceptible by the 

 senses ; capable of receiving an impression through 

 the senses. Endowed with the sense of feeling. 



Sensiferous (sen-sif'-er-us) [sensus, sense ; ferre, to 

 bear]. Conveying a sensation, or sense-impression. 



Sensigenous ( sen-sij' -en-us ) [sensus, sense ; gignere, 

 to produce]. In biology, giving rise to a sensory 

 impulse. 



Sensitive (sen' -sit-iv) [sensitivus^. Capable of feeling ; 

 reacting to stimulus. S. Dentine, a hypersensitive 

 condition of the dental structure of the teeth, due to 

 distal irritation of the tubular fibrils. 



Sensitiveness (sen' -sit-iv-nes) [sentire, to perceive]. 

 In biology, responsive to external stimulus or irrita- 

 tion. 



Sensitivity (sen - sit -iv*- it - e) [sensitivus, sensitive]. 

 Acuteness of the perception, or discrimination of 

 sensations ; capacity of receiving sense-impressions. 



Sensitivization (sen-sit-iv-iz-a' -shun) [sensitivus, sensi- 

 tive]. A phenomenon, real or supposed, occurring 

 during hypnotic sleep, in which by action upon 

 objects or strata of the atmosphere' these are seem- 

 ingly endowed with power to affect the patient as if 

 he himself were acted upon. This condition is 

 called also Externalization of Sensation, Transfer- 

 ence of Sensibility, etc. 



