DL'IPARA 



2-29 



DYSCHONDROPLASIA 



D. thoracicus sinister. See Duct, Lymphatic, Left 

 (Illus. Diet. i. D. thyreolingualis. See D. thyro- 

 glossus (Illus. Diet.). D. urinae, D. urinarii, the 

 urinary passages. D. urinarii contorti, the con- 

 voluted uriniferous tubules. See Titbulus uriniferi 

 (Illus. Diet.). D. urinarii recti medullares. See 

 Tubes of Bellini (Illus. Diet.). D. urinarii ser- 

 pentarii, the convoluted uriniferous tubules, tubes of 

 Ferrein. D. uriniferi. See Titbulus uriniferi ( Illus. 

 Diet. |. D. uriniferi Bellini. See Tubes of Bellini 

 (Illus. Diet.). D. (uteri) varicosus. See Oviduct 

 (Illus. Diet). 



Duipara tdu-ip'-ar-ah) [duo, two; parere, to bring 

 forth]. A woman pregnant for the second time. 



Dulcamaretin, Dulcamarrhetin {dul-kam-ar-e 1 '-tin). 

 C r ,H M O 10 — 2H 2 0. A resinous mass obtained by heat- 

 ing dulcamarin with dilute acids. 



Dulcification (dul-sif-ih-a'-shun) [dulcifcare, to 

 sweeten]. See Edulcoration (Illus. Diet.). 



Dulcify (liul'-sif-i ). To render sweet. 



Dulcin 'Jul' -sin). C 9 H 1 . 1 N.,O r A toxic substance 200 

 times as sweet as cane-sugar, obtained from para- 

 phenetidin, by action of potassium cyanate and occur- 

 ring in shining needles, soluble in ether, 25 parts of 

 alcohol, 800 parts of water, 150 parts of boiling water, 

 melting at 174 C. It is used as a sweetening medium. 

 Syn., Sucrol : Valzin ; Paraphenetol-carbamid ; Para- 

 ethoxvphenvlurea. 



Dulcoration (iiul-kor-a' -shuti). See Edulcoration (Illus. 

 Diet.). 



Dulcose (dul'-kos). See Dulcitol (Illus. Diet.). 



Dulness. (See Illus. Diet. ) D., Wooden, a percus- 

 sion note sounding as if given out from wood. 



Duodenocholedochotomy 1 du-o-den-o-ko-led-o-kof -o- 

 »ie). A modification of choledochotomy consisting in 

 incising the duodenum in order to reach the gall-duct. 



Duodenocystostomy (du-o-den-o-sist-os r -to-me) [duo- 

 denum : cystostomy~\. The establishment of a com- 

 munication between the bladder and the duodenum. 



Duodenogastric {du-o-den-o-gas' -trik). See Gastro- 

 duodenal (Illus. Diet.). 



Duotal [dii'-o-tal). The commercial name for guaiacol 

 carbonate. 



Duparque's Method for detecting ascites. See under 

 Dropsy, Abdominal. 



Duramatral (dit-rah-ma'-tral). See Dural (Illus. 

 Diet.). 



Duritis (du-ri'-tis). Inflammation of the dura ; pachy- 

 meningitis. 



Durol (du'-rof). See Durene (Illus. Diet.). 



Duroleum idu-ro'-l.-um). An ointment base obtained 

 from petroleum. 



Dust [AS.]. A substance reduced to a powder. Cf. 

 Coniosis, Dermaloconiosis, Enteroconiosis, pneumo- 

 coniosis. D., Animal, that derived from feathers, 

 vool, fur, or bristles. D. -bodies, Muller's. See 

 Hentokonia. D. -brand, smut. See Uslilago (Illus. 

 )ict.). D., Metallic, that derived from steel, brass, 

 stc. Cf. Siderosis (2). D., Mineral, that derived 

 stone, pottery, coal, etc. Cf. Authracosis, Chali- 

 cosis, Silicosis. D., Vegetable, that derived from 

 husks of cereals and from the fluff of cotton, hemp, or 

 flax. Cf. Byssinosis (Illus. Diet.), 

 varfism (dwarf f -izm) [M E., dwarf]. An abnormal 

 stature in man, often pathologic (microcephaly, rickets, 

 etc.), in which the height falls below I m. 25 cm., and 

 may be as little as 38 cm. (15 inches), as in the in- 

 stance of the dwarf Hilany Agyba, of Sinai. Cf. 

 Nanism. 



Dyad. (See Illus Diet.') 2. A unit made up of prim- 

 ary units which are differentiated into parts, but yet 

 constitute an individual; e. g., a morula. 



Dyadic (di-ad f -ik). Having the nature of a dyad. 



Dye. (See Illus. Diet. ) D., Acid, one produced by 

 combining a substance having coloring properties 

 and which plays the part of an acid (an anilin) with 

 some ordinary base, as sodium, potassium, etc. D., 

 Basic, one produced by combining with some acid a 

 coloring principle (an anilin) which plays the part of a 

 base. 



Dyestuff. (See Illus. Diet.) D.. Indifferent, a group 

 of histologic dyestuffs, neither basic nor acid, obtained 

 by Michaelis from acid which possesses a peculiar af- 

 finity for fats; an example is Sudan III (Benzolazo- 

 J-naphthol). D., Neutral, Ehrlich's term for a salt 

 the acid portion of which is an acid dye and of which 

 the basic -portion is a basic dye. 



Dymal di'-maT). See Didytnium salicylate. 



Dymyarious (di-mi-a'-re-us) (fivac, two; five, a mus- 

 cle]. Furnished with two muscles. 



Dynactinometer (di-nah-tin-om'-ct-ur) [Sivauic, en- 

 ergy ; auric, a ray ; uirpov, a measure]. An apparatus 

 for determining the intensity of the photogenic rays and 

 estimating the power of object glasses. 



Dynameter (di-uam'-et-ur). See Dynamometer (2). 



Dynamicity [di-nam-is'-it-e) [fiivauic, energy]. The 

 greatest capacity for inherent power possessed by a 

 substance or organism. 



Dynamics. (See Illus. Diet.) D., Vital, the science 

 of the inherent power of an organism. 



Dynamimeter, Dynamiometer (di-nam-im'-et-ur, di- 

 nam-e-om / -et-ur). See Dynamometer (Ulus. Diet.). 



Dynamoelectric (di-nam-o-e-lek f -trik) [divauic, power; 

 electric]. Relating to the motor power of electricity. 



Dynamogen (di-nam / -o-jen). A proprietary remedy 

 resembling hematogen ; used in anemia. 



Dynamography (di-nam-og / -ra-fe) [Svvauic, power; 

 -iv, to write]. I. Mechanics. 2. The measure- 

 ment and graphic record of muscular strength. 



Dynamometer. (See Illus. Diet.) 2. An instrument 

 for estimating the magnifying power of lenses. Syn., 

 D., Optical; Dynameter. 



Dynamometry \di-nam-om' -et-re) [Svvautg, power ; 

 ut-pnr, a measure]. The measurement of force by 

 means of the dynamometer. D., Vital, the estima- 

 tion of the inherent force of an individual. 



Dynamoscope (di-nam'-o-shop) [iSvvauiq, power; 

 CKo-eh; to examine]. An apparatus for auscultating 

 the muscles. 



Dynamoscopy (di-nam-os'-ho-pe). Auscultation of the 

 muscles by means of the dynamoscope. 



Dysapulotous, Disapulous (ilis-ap-u-lo'-tus, dis-ap- 

 u'-lus) [dixsa-ov/uroq, 6iaa~ov7nc, hardly forming a 

 scar]. See Dysepttlotic (Illus. Diet.). 



Dysarthritis {dis-ar-thri'-tis) [five, bad ; arthritis]. 

 Anomalous gout. 



Dysbasia. (See Illus. Diet.) D. intermittens. See 

 Claudication, Intermittent. 



Dysblennia (dis-blen'-e-ah) [Ave, bad ; 3>.hi>a, mucus]. 

 A disordered state or formation of the mucus. 



Dyscatabrosis (dis-kat-ah-bro'-sis) [fie, bad; mrd- 

 3pwaic, a devouring]. Difficulty in swallowing food ; 

 dysphagia. 



Dyschezia {dis-ke'-ze-ah) [fie, bad ; #££«?, to go to 

 stool]. Painful or difficult defecation, as in cases of 

 prolapse of the ovary. 



Dyscholia {dis-ko / -le-ah) [fie, bad; ^0/7, bile]. A 

 disordered or morbid state of the bile. 



Dyschondroplasia (dis-hon-dro-pla / -zeah) [fir, bad ; 

 Xovdpoc, cartilage ; Tz/acic, molding]. A disease of 

 unknown etiology, attacking the long bones and the 

 metacarpal and phalangeal skeleton of the hand. It 

 is characterized by the cartilaginous tissue developing 

 regularly in one and ossifying very slowly. 



