DAUCIFORM 



207 



DECIDUATK >X 



loid obtained by Ladenburg from Datura stramonium. 

 It is identical with hyoscyamin and isomeric with 

 atropin. It occurs in soft white needles, soluble in 

 alcohol, ether, and chloroform ; melts at lo6°-lo8° C. 

 It is employed in the treatment of mania, epilepsy, 

 neuralgia, rheumatism, syphilis, cancer, pains, spasms, 

 asthma, and as a hypnotic in insanity. Dose, ^o - ^'? 

 gr. (0.00026-0. ooi gm.j. Antidotes: emetics, stomach- 

 pump, castor oil. It is also called heavy or true 

 daturin. D. Hydrochlorate, C 17 H 23 X0 3 HC1. a white 

 crystalline salt, soluble in water and alcohol. Uses 

 and dose same as daturin. D., Light, hyoscyamin, 

 obtained by Ladenburg from Datura stramonium. D. 

 Sulfate, 1 C 17 H 2 3N0 3 ) 2 H. 2 S0 4 , a soft, white, crystalline 

 salt, soluble in water and alcohol ; melts at about 206 

 C. Uses and dose same as daturin. 



Dauciform [daw* '-si-form). See Daucoid. 



Daucoid 1 daiS-koid ) [davnov, the carrot ; 11601:, like- 

 ness]. Resembling a carrot ; dauciform. 



Daucosterin (daw-ko-ste / -rin). See Carotin (Illus. 

 Diet.). 



Daucus (daw' kits) [6avicov~\. A genus of plants of the 

 order Umbellifera. D. carota, Linn., the carrot, a 

 cultivated biennial indigenous to Europe and the Orient. 

 The root contains sugar, starch, pectin, malic acid, 

 albumin, a volatile oil, a crystalline coloring-matter 

 (carotin). It is a stimulant when applied to indolent 

 ulcers, and is fed to horses to render the coat glossy. 

 The aromatic seeds (fruit) are diuretic and are used in 

 cases of dropsy and nephritic complaints. D. gin- 

 gidium, L. , a species indigenous to Europe and 

 northern Africa ; it yields a gum resin, bdellium siculum. 



Daysight (da'-slt). See Hemeralopia (Illus. Diet. 1. 



Deacidification (de-as-id-if-ik-a' -shun). The act or 

 process of neutralizing an acid. 



Deafness. (See Illus. Diet.) D., Clang-. See 

 Clangdeafness (Illus. Diet.). D., Hysteric, deaf- 

 ness of sudden onset in cases of severe hysteria unac- 

 companied bv any local lesion of the ear. D., Intel- 

 lectual. See D., Psychic (Illus. Diet.). D., Mal- 

 arial, that accompanying severe malarial poisoning. 

 D., Nervous, deafness due to some affection of the 

 nervous mechanism of the ear. D., Speech-, a 

 variety of psychic deafness resembling word-deafness, 

 except that the faculty of repeating and writing 

 after dictation is not lost. D., Throat-, deafness due 

 to a congestion or inflammation of the pharynx. D., 

 Vascular, a form of deafness due, according to R. T. 

 Cooper, to "a basic aural dyscrasia." 



Dealbate (de-al'-bat) [dealbatus, whitewashed]. In 

 biology, coated with a tine white down or powder. 



Dealbation (de-al-ba'-shun\ [dealbare, to whiten over]. 

 The process or act of becoming or being made white, 

 as by bleaching. 



Dealcoholization (de-al-ko-hol-i-za'-shun). The re- 

 loval of alcohol from an object or compound used in 

 licroscopic technic. D. -agent, a liquid employed for 

 the purpose of getting rid of the alcohol in preserved 

 specimens, and to facilitate the penetration of paraffin 

 in microtomy. 



sambulation (de-am-bu-la f -shun) \deambulare, to 

 take a walk]. Gentle exercise, as walking; or, of the 

 mind. 



Deammoniated (de-am-cZ-ne-a-ted) [de, from; ammo- 

 nium}. Deprived of ammonia. 



Deanesthesiant (de-an-es-the'-ze-ant) [de, from; aiato- 

 ftrjGia, want of feeling]. A means for arousing the 

 system from a state of anesthesia. 



Deaquation (de-ak-wa f -shun\ [de, from; aqua, water]. 

 The act or process of removing water from a substance. 



Deargentation (de-ar-jen-ta* -shun) [deargentare, to 

 plate with silver]. The act or process of silvering. 



Dearterialization (de-ar-te-ri-al-i-za' '-shun) [de, from; 

 artery}. The transformation of the blood from the 

 arterial to the venous state. Cf. Atmospherization. 



Dearticulation {de-ar-tih-u-la' '-shun). See Disarticu- 

 lation, Dislocation, Diarthrosis (Illus. Diet.). 



Death. (See Illus. Diet.) D., Binsical, death pre- 

 ceded by mania. D., Local, gangrene, mortification. 

 D., Muscular, a state of the muscles in which they 

 no longer react to stimuli. D., Systemic. See 

 D., Somatic (Illus. Diet.). D., White, tubercu- 

 losis. 



Deauration (de-aw-ra' '-shun) [deaurare, to gild]. The 

 act or process of gilding. 



Debility. (See Illus. Diet.) D., Nervous. See 

 \eu /asthenia (Illus. Diet.). 



Decagonal (dek-ag' -on-al ) [fikna, ten; jwi/a, an 

 angle]. Having ten angles ; decangular. 



Decahedral (dek-a-he'-dral) [6ekci, ten; ebpa, abase]. 

 Having ten sides. 



Decamolybdate (dek-a-mol-ib'-ddt). A salt of molyb- 

 dic acid, each molecule of which contains 10 atoms of 

 molybdenum. 



Decarbonated (de kar f -bon-a-ted). Deprived of car- 

 bonic acid. 



Decarboni^ation, Decarburation, Decarburization 

 (de-kar-bon-i-za'-shun, de-kar-bu-ra' -shun, de-kar-bu- 

 ri-za'-shun). The act or process of freeing a sub- 

 stance from carbon. 



Decemcostate (de-sem-hos / -tdt) [decern, ten; costa, a 

 rib]. Having 10 ribs. 



Decemfid (de-sem'-fid) [decern, ten; finder e, to divide]. 

 Cut into 10 parts. 



Decene (des'-en). C 10 . H 10 . The product obtained 

 by prolonged heating of oil of turpentine, I part, and 

 hvdroiodic acid, 20 parts, at a temperature of 200 - 

 250 C. 



Decentered (de-sent-urd') [de, from ; center}. Out of 

 common center ; said of lenses as to focus, or of masses 

 as to equilibrium, etc. 



Decerebrize (de-ser'-e-briz) [de, from ; cerebrum]. To 

 remove the brain, as of a frog, in physiologic experi- 

 ments ; decerebrate. 



Decidua. (See Illus. Diet.) Syn., Membrana decidua ; 

 Decidua tunica. D., Catamenial. See D., Men- 

 strual: D., Epichorial. See D. reflexa (Illus. Diet.). 

 D. graviditatis, the menstrual decidua during preg- 

 nancy. D., Interuteroplacental. See D. serotina 

 (Illus. Diet. ). D. membrana. See Decidua (Illus. 

 Diet. ). D., Menstrual, the outer layer of the uterine 

 mucosa which is shed during menstruation. In mem- 

 branous dysmenorrhea it is discharged in pieces before 

 disintegration. Syn., D., Catamenial. D. placen- 

 talis subchorialis, the layer of the maternal placenta 

 lying next the chorion. Syn., D. subchorialis. D. sero- 

 tina, Glandular. See D. serotina, i'terine. D. 

 serotina, Placental, that portion of decidua serotina 

 which is in contact with the parts or cotyledons of the 

 placenta, as distinguished from the uterine decidua 

 serotina. D. serotina, Uterine, the outer layer of 

 the decidua serotina ; the glandular decidua serotina. 

 D. subchorialis. See D. piacentalis subchorialis. D. 

 tuberosa et polyposa, a form of decidual endometri- 

 tis characterized by a roughened condition and polypoid 

 growths of the uterine mucosa. 



Deciduata (de-sid-u-a'-tah) [deciduus, falling off]. 

 Those placental Mammalia which shed a part of the 

 uterine mucosa in parturition. 



Deciduate ide-sid'-u-dt). Characterized by a decidua 

 or part to be shed; having reference to the Deciduata ; 

 deciduous. Cf. Xondeeiduate. 



Deciduation {de-sid-u-a'-shun). The act or process of 

 dropping off or shedding. 



