ACHROMATOPSIS 



24 



ACID 



appear as white or gray. Cf. Acyanoblepsia, Anerythrop- 

 sia, Chromatodysopsia, Daltonismus, Xanthocyanopsia. 



Achromatopsis (ah-kro-mat-op' -sis'). Color-blindness ; 

 achromatopsia. 



Achromatosis. (See Illus. Diet.) A. acquisita, ac- 

 quired achromatosis. Cf. Vitiligo and Canities pre- 

 matura. A. congenitalis, congenital achromatosis. 

 Cf. Albinismus and Poliosis. 



Achromaturia (ah-kro-ma-tu' '-re-aJi) [a, priv. ; ^pu/ia, 

 color ; ovpov, urine], A colorless state of the urine. 



Achronizoic {ah-kron'-e-zo-ik) [a, priv.; jpow£«v, to 

 hold out]. A term applied to drugs which are inca- 

 pable of remaining unchanged for any length of time. 



Achroodectin {ah-kro-o-dek'-tin) \_axpooc, colorless ; 

 deK,e<j6ai, to receive]. A carbohydrate obtained from 

 the mucin of snails. Syn., Achrooglycogeti. 



Achrooglycogen [ah-kro-o-gli 1 '-ko-jen). See Achroodec- 

 tin. 



Achroous {ah 1 '-kro-us). Devoid of color. See Achro- 

 matisious. 



Achylia. (See Illus. Diet.) A. gastrica, Einhorn's 

 term for a condition of the stomach marked by destruc- 

 tion of the glandular structures with resulting absence 

 of chyme, ferment, and even mucus; called anadenia 

 gastrica by Ewald. 



Achymous (ah-ki'-mus) [a, priv.; ^t'^of, chyme]. I. 

 Deficient in chyme. 2. Achylic. 



Achyranthes. (See Illus. Diet.) A. aspera, Linn., 

 a shrub of India, where the seeds, flowers, and leaves 

 are esteemed in the treatment of hydrophobia, snake- 

 bites, ophthalmia, and cutaneous diseases. A. fruti- 

 cosa, Lam., same distribution and uses as the fore- 

 going species. 



Aciamid (as-i'-am-id) \_acid ; amid\ A body formed 

 on the ammonia type, but possessing an acid character. 



Acibromid {as-e-bro'-mid). See Oxybromid. 



Acichlorid {as-e-klor f -id). See Oxychlorid. 



Aciculate {as-ik' '-u-ldt) [acus, a needle]. Needle- 

 shaped; acicular, aciculiform, aciform. 



Aciculiform (as-ik-u' '-le-form). See Aciculate. 



Acid. (See Illus. Diet.) 2. Sour. 3. Possessing the 

 chemical properties or exhibiting the reaction of an acid. 

 A., Abietinic. Same as A., Abietic (Illus. Diet.). 

 A., Absinthic, an acid obtained by Braconnot from 

 wormwood ; it is said to be identical with succinic acid. 

 A., Acetosulfuric. See A., Thioacetic. A., Acetyl- 

 formic. Same as A., Pyruvic (Illus. Diet.). A., 

 Acetylsalicylic. See Aspirin. A., Achilleic, an 

 acid obtained from Achillea millefolium, identical with 

 aconitic acid. A., Adenylic, a primary nucleinic 

 acid obtained from animal glands and supposed by 

 Kossel to contain only adenin as a nucleinic base, but 

 now known to contain also guanin and a third basic 

 substance termed cytosin. A., Adhatodic, an acid 

 found in combination with an alkaloid, vasicin, in Ad- 

 hatoda vasica (</. v.). A., Agaric, A., Agaricinic. 

 $>a.mt&sA.,Agaricic (Illus. Diet. ). A., Ailanthic, A., 

 Ailantic, a bitter nitrogenous acid isolated from the 

 bark of Ailanthus excelsa. Said to possess medicinal 

 virtue. A., Alantic. See A., Alanthic (Illus. Diet. ). 



OH 

 A.s, Alcohol, CnII. in <Cr-n H mon °basic acids having 



t e properties of the monohydric alcohols. They are 

 distinguished as primary, secondary, and tertiary accord- 

 ing as they contain, in addition to the carboxyl group, 

 the group — CH.,OH, the radicle =CHOH, or the 

 group =C . OIL Syn., Oxyacids, Hydroxv-fatty acids. 

 Cf. A., Glvcoliic{ Illus. Diet.). A.s, Aldehyd, bodies 

 which combine the properties of a < arboxylic acid and 

 of an aldehyd. Cf. A., Formic (Illus. Diet.). A., 

 Aliphatic. Same as A., Fatty. A., Alizaric, A., 

 Alizarinic. See A., J'l/thalic (Illus. Diet.). A., 



Alkali. Same as Amido-acid. A., Allantoic, 1. 

 C 4 H g N 4 4 . A monobasic crystalline acid obtained 

 from allantoin by the addition of the elements of a mole- 

 cule of water. 2. A name formerly given to allantoin 

 under the belief that it was a true acid. A., Allantu- 

 ric, C 3 H 4 N 2 O s , obtained from allantoin on warmin" 

 with baryta- water or with Pb0 2 and by oxidation of hy- 

 dantoin. Syn., Lantanuric acid. A., Allituric, C.H.- 

 N 4 4 , yellowish-white crystals, soluble with difficulty 

 in water, obtained from alloxantin by treating it with 

 hydrochloric acid. A., Allomaleic. Same as A., 

 Fumaric. A., Aloetic, A., Aloetinic, C u H 4 N 4 O 10 . a 

 yellow amorphous powder, soluble in alcohol and 

 slightly in water, obtained from aloes by action of nitric 

 acid ; it explodes on heating. Syn., Tetranitroanthra- 

 quinon ; Polychromic acid ; Aloe purple ; Artificial 

 bitter of aloes ; Aloitinic acid. A . , Aloitinic . See A . , 

 Aloetic. A. of Amber. See A., Succinic (Illus. 

 Diet.). A., Ambreic, an acid obtained from ambrein 

 by action of nitric acid with heat. A., Amic, anv 

 one of a class of nitrogenized acids produced by the 

 substitution of amidogen (NH 2 ) for a hydroxyl mole- I 

 cule in the acid characteristic of a polybasic acid. A., 

 Amidacetic. See Glycin (Illus. Diet.). A., Amid- 

 isethionic. See Taurin (Illus. Diet.). A., Amido-.i 

 See under Amido-acid (Illus. Diet.). A., Amidobar- 

 bituric. Same as Uramil (Illus. Diet.). A., Amido- 

 caproic. See Leucin (Illus. Diet.). A., Amidoethyl- i 

 enlactic. See Serin (Illus. Diet.). A., Amidoethyi- 

 sulfonic. Same as Taurin (Illus. Diet. ). A., Amido- 

 glutaric. See A., Glutamic. A., Amidoglycollic. ' 

 See Glycin (Illus. Diet.). A., Amidohydracrylic. 

 See Serin (Illus. Diet.). A., Amidoisethionici 

 See Taurin (Illus. Diet.). A., a-Amidoisobutyla- ^ 

 cetic. Same as Leucin (Illus. Diet.). A., Amido- 

 lactic. See Alanin (Illus. Diet.). A., Amido- 

 oxyethylsulfonic. Same as Taurin (Illus. Diet.). 

 A.,a-Amidopropionic. Same asAlanin (Illus. Diet.). 

 A., Amidopyrotartaric. See A., Glutamic. A.. 

 Amidosuccinic. See A., Aspartic (Illus. Diet.). A., 

 Amidosulfethylic. See Taurin (Illus. Diet.). A., 

 a-Amidothiolactic. Same as Cystein. (Illus. Diet.). 

 A., Aminoethan. See Glycin (Illus. Diet.). A., 

 Ammonchelidonic. See A., Chelidonamic. A., 

 Amniotic. See Allantoin (Illus. Diet.). A., Amyg- 

 dalic, C 20 H 28 O 13 , a crystalline acid obtained from 

 amygdalin by action of alkalies. A., Amylic. i 

 A., Valeric (Illus. Diet.). A., Anacardiac, i\_..\i 

 3 , a tetratomic acid obtained by Stadler from the 

 fruit of Anacardium occidentale (cashew nut), occur- 

 ring in white, radiating, inflammable crystals, witharo 

 matic, slightly burning taste, soluble in alcohol ami 

 ether, insoluble in water, melts at 26 C. It is used 

 as an anthelmintic in the form of ammonium anacai 

 date. A., Anchoic. SameasA.,.-lzt/<iii. A., An- 

 chusic. See Alkannin (Illus. Diet.). A., Anhy- 

 drosulfaminbenzoic. See Saccharin (Illus. Diet.}. 

 A., Anhydrous. See Anhydrid (Illus. Diet.). A 

 Anilic. See A., Mononilrosalicylic. A., Anilotic, 

 A., Anilotinic, C 7 H 5 N0 5 -f- H 2 0, colorless needles 

 soluble in alcohol and ether and slightly soluble in 

 water, melting at 125 C. It is an oxidation 

 of salicin or salicylic acid by action of nitri 

 Syn., [3-Mtrosalicylic acid. A., Animal, an acid 

 characteristic of or obtained from animal t 

 products. A., Anisuric, C 10 H n Nl » 2 , an acid fornix 

 bj the action of anisyl chlorid on the silver compound 

 of glycocoll; it also occurs in the urine after the in ' 

 gestion of anise. A., Anisylous. Sec 

 Anisic (Illus. Diet.). A., Anthemic, A., Anthe- 

 midic, an acid found by Pattone in the bloom of A* 

 themis cotula, L, and A. arvensis, L. It forms silk) 



