SELENODONT 



Sclenodont (sel-en f -o-dont) [ae'/.r/vri, the moon ; odoic, 

 tooth]. In biology, applied to such animals as have 

 molar teeth with crescentic ridges on the crowns. 



Selenoplegia [sel-en-o-pW -je-ah) [ae/.r/vr], moon ; -?jj- 

 -:roke]. A kind of apoplexy said to be caused 

 bv exposure to the moon's rays. 



Selenoplexia (sel-en-o-pleks' -e-ah). See Selenoplegia. 



Selenotropic {sel-en-o-trop' -ik) [ae/.r/vrj, the moon ; 

 - rreiv, to turn]. In biology, turning toward the 

 moon ; applied to growing parts of plants which are in- 

 fluenced in their direction of growth by the influence 

 of the moon. 



Self [ME., self, self]. Same; identical; own; per- 

 sonal. S. -abuse. See Masturbation. S. -differ- 

 entiation, the theory that cells control themselves ; 

 that is to say, the fate of the cells is determined by 

 forces situated within them, and not by external in- 

 fluences ; a conception first propounded by His, and 

 later demonstrated by Roux, Pfliiger, Bom, Weis- 

 mann, and others. S. -digestion. See Autodigestion . 

 S.-fertilization, in biology, fertilization of a flower 

 by its own pollen. S.-heal, Prunella vulgaris ; heal- 

 all ; a perennial herb growing in North America, 

 Europe, and Asia. S.-incasement, a condition in 

 which the small intestine is inclosed, as in a pouch, 

 between the layers of the mesentery (J. S. Thatcher). 

 S. -infection, the spread of infectious material from a 

 circumscribed area to others or to the entire organism. 

 S. -inflation, a process suggested by H. R. Silvester, 

 by which a person in danger of drowning is to render 

 himself buoyant. After having made a puncture in 

 the mucous membrane of the mouth, at the reflection 

 of the cheek from the lower jaw, air is to be forced 

 into the subcutaneous tissue of the neck by vigorous 

 blowing efforts, with the mouth and nose closed. S.- 

 limited, a term applied to certain diseases, which even 

 without treatment run a definite course within a given 

 time. S. -pollution. See Self-abuse. S.-repos- 

 itor, Pneumatic, a curved and bulbous glass tube 

 i at bed-time for the reposition of the displaced 

 rus, the instrument being used by the patient, and 

 operated by air-pressure. S. -suggestion. See Auto- 

 suggestion. S.- suspension, suspension of the body 

 for the purpose of stretching or making extension 

 on the vertebral column. See Suspension. S.-s., 

 Axillo-cephalic, suspension by the axillae and the 

 head. S.-s., Cephalic, suspension by the head. 

 Selinum [se-li'-num) [ai/.ivov, a kind of parsley]. I. 

 Tarum pitroselinum of the ancients. 2. A genus of 

 perennial herbs belonging to the Umbelliferee. . 

 Sella ysel'-ah) [L.]. A seat; a part having a shape 

 like a seat or saddle. S. turcica (Turkish saddle), 

 the pituitary fossa of the sphenoid bone, lodging the 

 pituitary body, 

 iellanders, Sellenders {sel> -an-derz, sel f -en-derz) 

 [origin obscure]. A kind of eczema occurring on 

 the tarsus of the horse. See Mallenders. 

 ielliform {sel'-if-orm) [sella, a saddle; forma, form]. 

 \ In biology, saddle-shaped. 



Jelters, Seltzer {sel'-ters, selts'-er) [German]. I. A 

 place in Hesse-Nassau, Prussia, where there are 

 gaseous springs containing chiefly carbonates and 

 sulphates. 2. An abbreviated name for seltzer water, 

 an acid soda mineral water ; the term is also applied 

 to artificial seltzer water. 

 :lza Water. See Seltzer. 



itnatic { ?e-mat f -ik) [aijfia, a sign, mark, token]. In 

 biology, applied to colors in mimicry, used as signals 

 or warnings for repelling enemies by the indication of 

 some unpleasant or dangerous quality. Cf. Aposematic, 

 Episematic, Allosematic . 



emeiography [se-me-og'-ra-fe) [orjueiov, sign ; ypatjxiv, 

 IB 83 



1313 



SEMICUPIUM 

 A descriptive treatise on the symptoms of 



to write], 

 disease. 



Semeiology (se-me-ol* '-o-je) [ar/uelov, sign ; '/xiyoc, dis- 

 course]. Same as Symptomatology. 



Semeiosis (se-me-t/sis) [mjueiov, sign]. The study of 

 symptoms as indications of disease. 



Semeiotic {se-me-of -ik) [ajjuelop, sign]. Pertaining to 

 semeiotics, or to symptoms. 



Semeiotics {se-me-of -iks) [arifieiov, sign]. The science 

 of symptomatology. 



Semelincident (sem-el-in' 'sid-ent) [semel, once ; incid- 

 ere, to happen]. Happening only once; a qualifica- 

 tion applied to certain diseases which, as a rule, occur 

 but once in the same individual, as, e. g., small- 

 pox. 



Semen {se'-men) [serere, to sow: gen. , seminis]. The 

 fecundating fluid of the male, chiefly secreted by the 

 testicles, composed of the liquor seminis, the seminal 

 granules, and spermatozoa. For testing for semen in 

 medico-legal examinations, see Lassaigne's Test, in 

 Tests, Table of. S. contra, worm-seed. See Santonica. 

 S. multiplex. Same as Sporiderm. 



Semester \se-mes , -ter) [semeslris, half yearly ; sex, six ; 

 mensis, month]. A period of six months. 



Semi- (sem'-e-) [semi, one-half]. A prefix to denote 

 the half of anything. 



Semiacid {sem-e-as'-id) [semi, half; acidum, acid]. 

 Half acid. 



Semiadherent ( sent -e-ad- he*- rent ) [semi , half ; ad- 

 harere, to adhere]. In biology, having the lower 

 half adherent, as a seed. 



Semiaquatic ( sem -e-a- kwaf- ik ) [semi, half ; aqua, 

 water]. In biology, growing, or living close to the 

 water, and having the capacity for existence either 

 within it or out of it. 



Semiarticulate {sem-e-ar-tik'-u-lat) [semi, half; artic- 

 ulus, a joint]. Loose-jointed. 



Semibulb {sem f -e-bulb) [semibulbus, half bulb]. Either 

 half of the bulbus vestibuli of the corpus spongiosum 

 of the clitoris. 



Semicartilaginous {sem-ik-ar-til-aj' -in-us) [semi, half; 

 cartilago, gristle] . Gristly ; partially cartilaginous. 



Semi-castration ( sem -e- kas - tra / - shun ) [semi, half ; 

 castrare, to cut]. The removal of one testicle. 



Semicaudate {sem-ik-aii/ -dat) [semi, half; cauda, 

 tail]. In biology, having a rudimentary tail. 



Semicell {sem'-is-el) [semi, half ; cella, a small room]. 

 In biology, one of the halves into which a cell is nearly 

 divided by constriction in the middle, as in Desmi- 

 diacea. Called also half-cell. 



Semicephalus {sem-is-ef' '-al-us). See Anenccphalus . 



Semicircular {sem-e-sir* -ku-lar) [semi, half; circulus, 

 a circle]. Having the form of a half-circle. S. 

 Canals. See Canal. 



Semicircumference (sem-e-sir-kum / -fer-ens)[semi, half; 

 circumfere, to carry around]. Half the circumference 

 of a circle. 



Semiconscious (setn-ik-on f -shus) [semi, half; conscius, 

 knowing]. Half-conscious; partially conscious. 



Semicordate {sem- e- kor'- dot) [semi, half; cor, a 

 heart]. Having the form of a lateral half of a heart. 



Semicorneous (sem-ik-or / -ne-us) [semi, half; corneus, 

 homy]. Partly horny. 



Semicostiferous {sem - ik -os- tif f - er - us) [semi, half ; 

 costa, rib ; ferre, to bear]. Having a costal demi- 

 facet. 



Semicretin {sem-e-kre'-tin) [semi, half; cretin']. A 

 person having a form of cretinism in which the rudi- 

 ments of language have been developed. Intellection 

 reaches only to the most ordinary bodily wants. 



Semicupium (sem-e-ku' '-pe-um) [semi, half; cupa, tub]. 

 A half- bath, hip-bath, or sitz-bath. 



