SEBORRHEIC 



465 



SENECIN 



like crusts. S. pityriasiformis. See -S". furfuracea 

 (Illus. Did 



Seborrheic, Seborrhoic {seb-or-e / -ik, seb-or-t/-ik). I. 

 Affected with seborrhea. 2. One suffering with sebor- 

 rhea. ( 



SscaXia. (sek-a'-le-ah). See Trimethylamiti (Illus. Diet.). 



Secalose (seiZ-al-os). A carbohydrate from green rye, 

 soluble in water. 



Secretin [se-kre , -tin) [secernere, to separate]. A body 

 produced in the epithelial cells of the duodenum by 

 the contact of acid. It is absorbed from the cells by 

 the blood and excites the pancreas to secretion. 



Jecretogog (se-kre' '-to-gog) [secretion : d;w;6c, a lead- 

 ing]. I. Stimulating the secretory function. 2. An 

 agent which stimulates secretion. 



;cretory. (See Illus. Diet.) S. Capillaries, minute 

 canaliculi into which gland-cells discharge their secre- 

 tion ; they are simple or branched, sometimes anasto- 

 mose, forming a network enveloping the gland-cell, 

 and open individually or united in a single trunk into 

 the lumen of the gland. They occur in the fundus 

 glands of the stomach, where the capillary networks 

 envelop the parietal cells, in the liver, and in other 

 glands. 



Sectile (seP-til) [secure, to cut]. Capable of being 

 cut. 



Sectio, Section. (See Illus. Diet.) S. -cutter, a 

 microtome. S. mariana. See S. mediana (Illus. 

 Diet. ). S. nympharum, nymphotomy. S., Oc- 

 cipital, a transverse section through the middle of the 

 occipital lobe. S., Parietal, a transverse vertical sec- 

 tion through the ascending parietal convolution. S., 

 Perineal, external urethrotomy without a guide. S.s, 

 Pitres', a series of sections through the brain for post- 

 mortem examination. 



Secundagravida (se-kun-dah-grav f -id-ah) [secundtts, 

 second ; gravidas, pregnant]. A woman pregnant 

 the second time. 



Secundipara (se-hun-dip' '-ar-ah) [secundtts, second ; 

 parere, to bring forth]. A woman who has bome two 

 children. 



Secundiparity (se-kun-dip-arf-it-i). The state of be- 

 ing a secundipara. 



Secundiparous (se-kun-dip'-ar-us). Having borne two 

 children. 



Sedatin (sed f -at-in). I. Antipyrin. 2. See VaUryl 

 tidin. 



Sedimentator (sed-i-ment'-at-or). A centrifugal ap- 

 paratus for producing a rapid deposit of the sediment 

 of urine. 



Seebeck-Holmgren's Test. See Holmgren' s Test 

 (Illus. Diet.). 



Seehear (se / -hir). Of W. Rollins, a stethoscope fitted 

 with a sound chamber and fluorescent screen by means 

 of which the heart and lungs are rendered both visible 

 and audible. 



Segment. (See Illus. Diet. ) S., Vertebral. I. See 

 Somatome (Illus. Diet.). 2. The cusps of the heart- 

 valves. 



Segregator (seg / -re-ga-tor) [segregare, to separate]. 

 An instrument by means of which urine from each 

 kidney may be secured without danger of admixture. 



Seisesthesia (si-zes-the' -ze-ah) [ae'iaic, a concussion ; 

 alcdijOK;, sensation]. Perception of concussion. 



Seismic (stz'-mik) [aeiauoc, an earthquake]. Relating 

 to earthquakes. 



Seismotherapy (slz-mo-ther 1 'ap-e) [aeiauoc, a shaking ; 

 8epa-eia therapy]. The therapeutic use of mechanic 

 vibration, vibrotherapeutics. Cf. Shaking cure. 



Sejunction (se-junk'-shun) [sejttngere, to disunite]. In 

 psychology the interruption of the continuity of associa- 

 tion-complexes, tending to break up personality. 

 30 



Selector (se-.'ek'-for) [seligere, to choose]. A device 

 for selecting or separating. S., Cell, an appliance for 

 regulating the current strength in galvanic electricity. 

 A good selector must admit of an increase or a decrease 

 of electromotive force through the introduction of one 

 cell at a time ; it must permit of such increase or de- 

 crease without producing any interniption in the flow 

 of the current. All selectors are constructed upon one 

 of three principles : the crank, the rider, or the plug 

 system (Jacoby). 



Seleniate (seZ-en'-e-at). A salt of selenic acid. 



Seleniferous (sel-en-i/'-ur-tts) [selenium ; ferre, to bear]. 

 Containing selenium. 



Selenin B. (sel-eu'-in) [ae'/ijvT}, the moon]. The active 

 toxic element in cultures of Diplococcus semilunaris, 

 Klebs. 



Selenitic {sel-en-it'-ik). Containing selenite. 



Selenogamia (se.'-en-o-gam'-e-ah) [at'/i,vrt, the moon; 

 -■auoc, marriage]. Somnambulism. 



Selenopyrin (sel-eno-pi'-rin\. A reaction product of 

 potassium selinid with a so-called antipyrin chlorid. 



Sella. (See Illus. Diet.) E. equina, S. sphenoid- 

 alis. See S. turcica (Illus. Diet.). 



Semantics (sem-an'-tiks) [oeuairinoc, significant]. The 

 science of significations. 



Semenuria. See Seminnria (Illus. Diet.). 



Semicanal, Semicanalis (sem-e-kan-al' , -is) [semi, 

 half; caualis, a canal]. A canal open on one side ; a 

 sulcus or groove. S. humeri. See Groove, Bicipital 

 (Illus. Diet). S. nervi vidiani, the groove on the 

 temporal bone for the passage of the vidian nerve. S. 

 tensor tympani. See Receptacle, Tympanic Tensor. 

 S. tubae eustachii. See Sulcus tub\e eustac/iii. S. 

 tympanicus. See Canal, Tympanic (Illus. Diet.). 



Semicordate (sem-e-kor'-dat) [semi, half ; cor, the 

 heart]. Shaped like the half of a heart that has been 

 divided longitudinally. 



Semicretinism (sem-e-kre / -tin-izm). The condition of 

 being a semicretin (a. v.). 



Semidecussation (sem-e-de-kus-a' -shun). Partial de- 

 cussation. 



Semiglutin.(.r<rw-^- < §7// / -/7«). C^H^Nj-O.., . A deriva- 

 tive of geiatin resembling a peptone. 



Seminalism (sem'-in-al-izm) [seminalis, relating to 

 seed, primary]. A vitalistic theory proposed by Bou- 

 chet, of Paris, which teaches that the vital forces of 

 man and beasts are totally distinct and that beasts have 

 an intelligence of instinct and man one of abstraction. 

 [Park.] 



Seminex {sem f -e-neks) [semi, half; nex, death]. Half 

 dead. 



Seminist (sem'-in-ist). See Spermist ( Illus. Diet.). 



Seminormal (seme-nor'-mal). Of one half the nor- 

 mal strength. 



Semiography. See Semeiography (Illus. Diet.). 



Semisomnis isem-e-som'-nis) [>emi, half ; somnus, 

 sleep]. Coma. 



Semisomnous [sem-e-som' -ntts). Relating to a coma- 

 tose condition. 



Semisoporus (sem-e-so f -por-us) [semi, half ; sopor, 

 sleep]. Coma. 



Semivalent (scm-iv'-al-ent) [semi, half; valere, to be 

 able]. Of one-half the normal valency. 



Sempiternal (sem-pi-tur'-nal) [sempiternus, everlast- 

 ing]. Applied to an indivisible specific totality bring- 

 ing back trie past to the present, in opposition through- 

 out all time to the remainder of transitory nature 

 (Montgomery). 



Senalbin (sen al' -bin). C^H^NjSjOjg. A glucosid 

 found in white mustard, Brassica alba, Hook. 



Senecin. (See Illus. Diet.) 2. An alkaloid found in 

 1895 in Senecio vulgaris, L. 



