ARGIAMBLY< »I'IA 



109 



ARMY ITCH 



are used: A. cyanidum, AgCN,used in the prepara- 

 tion of hydrocyanic acid. A. iodidum, Agl, some- 

 times used internally instead of A. nitras. I 

 gr. 5^-j. A. nitras, AgNO s> " nitrate of silver," 

 argentic nitrate, " lunar caustic, " a powerful astringent 

 and an escharotic of moderate strength. It -tains 

 skin and other tissues black when applied in strength. 

 In small doses it stimulates the heart and n 

 If too long continued, it leaves a slate colored, insolu- 

 ble deposit of silver under the skin [Argyria). Dose 

 gr. '(,-'.. A. nitras dilutus, the mitigated caustic or 

 dilute stick is fused with an equ il weight of potassium 

 nitrate. A. nitras fusus, "stick caustic." ' on- 

 tains four percent, of silver chlorid. It i.- used locally. 

 A. oxidum, Ag 2 0, explosive when treated with am- 

 monia. Dose gr. ' 2 ij- A. vivum, an old name for 

 mercury or quicksilver. 



Argiamblyopia {ar-ge-am-ble-o r -pe-ah) \apyia, disuse; 

 <///,•>'/ rt.izia. dim sightedness]. See Argamblyopia. 



Argilla {ar-jil '-alt) [dpytAAoc, potter's clay]. White 

 or potter's clay, alumina. See Bole. 



Argol (ar^-gol) \apy6q, white]. The impure tartar 

 derived from wine. See Tartar. 



Argyll-Robertson Pupil. See Signs and Symptoms, 

 Table of, and Pupil. 



Argyll-Robertson's Operation. See Operations, 

 Table of. 



Argyria [ar-jir f -e-ak) [argentum, silver]. A form of 

 chloasma or discoloration of the skin and mucous 

 membranes produced by the prolonged administration 

 of nitrate of silver, the molecules of silver being de- 

 posited in much the same position as those of the 

 natural pigment of the skin. It may be general, from 

 internal administration, or local, from its local applica- 

 tion. 



Argyriasis (ar-jir-i '-as-is). See Argytia. 



Argyrosis [ar-jir-o' -sis) . Same as Argyria, q.v. 



Arhinia [ak-rin' '-e-aK) [a priv. ; p\q, nose]. Congen- 

 ital absence of the nose. 



Arhythmia [ar-ith'-me-ah). See Arrhythmia. 



Aricin [ar'-is-iri) [Arica, ia Peru], C 23 H 26 N 2 4 . An 

 alkaloid obtained from several varieties of cinchona 

 bark. 



Ariditas (ar-i/'-it-as) [L., " dryness"]. A dried or 

 withered condition of any part or organ. 



Aridura (ar-id-u'-rah) [L.]. Dryness; a drying up, 

 withering, or wasting of a part, or of the organism as 

 a whi »le. 



Aril, or Arillus {ar'-il, or ar f -il-us) \aridus, dry]. In 

 biology, the accessory coat of certain seeds, growing 

 from the funiculus, hilum, or placenta, as the mace of 

 nutmegs. 



Arisema [ar-is-et-mah) [apov, arum ; of/un, a sign]. 

 A genus of araceous herbs. A. atrorubens, the wild 

 or Indian turnip, or Jack-in-the-1'ulpit of Eastern X. 

 America. Its corm is strongly stimulant and acrid, 

 with emetic, expectorant, and sternutatory qualities. 

 Other species have similar properties. Uhof. 



Arista [ar-is'-tah) [I..]. In biology, the awn or beard 

 of certain flower- or animals. 



Aristate (ar-is'-tat) [arista, the awn or beard of grain]. 

 In biology, awned. Tipped with a bristle. 



Aristol [ar f -is-tol\ \_apiaroc, best; oleum, oil], (C g H 2 - 

 CH 3 OI.C 3 H 7 ) 2 . Annidalin; Dithymol-iodid. An 

 iodin compound used a- a substitute for iodoform as an 

 antiseptic dressing. It has the advantage of being 

 odorless, and is used either in the powder form or as 

 a five to ten per cent, ointment with vaselin or lanolin. 



Aristolochia [ar-is-to-lo' -ke-ah) \apiat 



the lochia]. A genus of exogenous herbs, many 

 species of which have active medicinal qualities. A. 

 clematitis, of Europe, has been used as a tonic. stimu- 



lant, and diaphoretic. A. cymbifera, of S. America, 

 furnishes a part of the <lrug called Guaco [a. v.), and 

 i- a good tonic and stimulant. A. serpentaria 

 Serpentaria) is at present mire used in medicine than 

 any other species. 



Aristolochic [ar-is-to-lo' '-kik) [apurrog, best ; /"(. "', the 

 lochia], i. Having the property of expelling the 

 placenta, or of exciting or promoting the lochial dis- 

 charge. 2. A medicine used for expelling the -ecun- 

 dinesor for exciting the lochial flow. 



Aristolochin [ar-isto-lo / -kin) [apurrog, best; /■■ 

 the lochia]. A bitter principle found in Virginia 

 snake-root. See Serpentaria. 



Aristotle's Experiment. The double feeling experi- 

 ence! by the fingers when a single pebble is placed 

 between the crossed fingers of one hand. 



Aristulate [ar-is'-tu-ldt) [aristula, dim. of Arista, awn 

 or beard of grain]. In biology, having a short awn. 



Arithmomania (ar-itA-mo-ma'-ne-aA) [apidpog, a Dum- 

 ber; uavia, madness]. An insane anxiety with 

 regard to the number of things that fall under 

 the observation. Sometimes it i onsists in constant 

 or uncalled-for counting, either of objects or in mere 

 repeating of consecutive numbers. 



Arlt-Jaesche's Operation. See Operations, Table of. 



Arlt's Ointment. An ointment containing grs. viis 

 belladonna to %)% of blue ointment, for use in bleph- 

 arospasm. 



Arlt's Operation. See Operations. 7 



Arm i arm) [armare, to arm]. I. That part of the upper 

 extremity from the shoulder to the wrist. 2. That por- 

 tion of the stand connecting the body or tube of a 

 microscope to the pillar. 



Armadillo lar-ma-dil' '-o) [Sp.,dim. of armado, armed]. 

 A trade-name for a proprietary arrangement of pi.. 

 straps, and buckles worn upon the person fir its 

 alleged electric effects. 



Armamentarium [ar-ma-men-ta' '-re-um) [I... an 

 arsenal]. The outfit of medicines or in-truments of 

 the physician or surgeon. 



Armarium [ar-ma' -re-urn) [L.]. See Armamentarium. 



Armature lar* -mat-chur) \armatura, equipment]. A 

 mass of soft iron at the extremity of a magnet. 

 the core of iron around which coils of insulated wire 

 are wound or disposed. 



Arma urticaria [ar / -mah er-tik-a' -re-ah) [I..]. The 

 urticating weapons of Ccelentera: 



Arm-chair, Charcot's. See Shaking Cure. 



Armed Tape-worm. See Tenia solium. 



Armenian (<ir- me / -nt ■-,;>! \ [Armenia]. Of or belonging 

 to Armenia. A. Blue. Same a- Ultramarine. A. 

 Bole, a reddish, unctuous earth or clay formerly 

 much used in medicine, now used in tooth-powders 

 and in veterinary practice. It is absorbent and 

 astringent. 



Armilla (ar-mil'-ah) \armilla, a bracelet, ring]. I. In 

 biology, the annular ligament of the wrist ; a colored 

 ring on the tibia of a bird or the plaited frill on the 

 stipe of certain mushroom-. 2. The Gasserian gang- 

 lion. 



Armpit yarm' -pit' \armus, shoulder ; puteus,& well]. 

 The axilla. 



Armus iar'-mus) \armu . :t!der~\. The 



arm, or the arm and shoulder. 



Army Itch [ar* '-me itch). A distressing chronic form 

 of itch prevalent in the United States at the close of 

 the civil war. The itching wa- intense. The erup- 

 tion was seen especially on the arm-, forearms, chest, 

 abdomen, and lower extremities, particularly on the 

 ulnar side of the forearm and inner aspect of the 

 thigh. It resembled prurigo associated with vesicles, 

 pustules, and eczema. 



