INDIAN 



609 



INDIVIDUAL 



chiefly for its elasticity ami ii- insolubility in water. It 

 is with difficulty soluble in oil of turpentine, but is highly 

 soluble in carbon disulphid. It units at 24S !•'. , and 

 remains unchanged up to 500 F. It is hardened and 

 used in mechanical dentistry as a base for artificial 

 teeth. It is also called Caoutchoui , </. v. 



Indian {in/ -de-an) [India"]. Pertaining to India, the 

 West Indies, or to the aboriginal Americans. I. Bas- 

 ket, a hollow cylinder woven of twigs of the willow, 

 orof strips of other wood, used in applying extension to 

 a dislocated limb. Thegreater the extension, the more 

 firmly does the device cling to the surface. I. -blue. 

 Same as Indigo. I. Black-root, the rooti if Pterocaulon 

 pyenostachium. It has reputed alterative properties. 

 Dose of the fluid extract Tt^xv-xxx. Unof. I. Corn. 

 See Zea mays. I. Hemp. Set- Cannabis. I. Liquo- 

 rice. See Abrus. I. Physic, American Ipecac- 

 uanha, the bark of the root of Gillenia trifoliala, a 

 mild emetic and cathartic. Dose of the fluid extract, 

 rr\_x-xl. Unof. I. Sarsaparilla. See Hemidesmus. 

 I. Tobacco. See Lobelia. I. Turnip. See Dragon 

 Root. I. Madder. Same as Mungeet. I. Meal, 

 corn-meal. ' I. Ochre. Same as Ochre. I. Plague. 

 Synonym of the Plague, q. v. I. Potato. See 

 Apios. I. -purple. See Pigments, Conspectus of. 

 I. -red. Same as Colcothar and Ochre. I. -yellow. 

 Same as Purree. 



Indican (in'-dik-an) [indicum, indigo], C, 6 H :]1 N0 17 . 

 The natural glucosid by the decomposition of which 

 indigo-blue is produced from the various species of 

 indigo-producing plants. It forms a transparent brown 

 syrup, tlie aqueous solution of which has a yellow 

 color, bitter taste, and slightly acid reaction. It is 

 occasionally detected in the urine. 



Indicant [in' -dik-ant) [indicans : indicare, to indicate]. 

 I. Serving as an index or as an indication. 2. A fact 

 or symptom that indicates a certain treatment ; an indi- 

 cation. 



Indicanuria {in-dik-an-u' -re-aK) [indicum, indigo; 

 ot'/w, urine] . The morbid excess of indican in the urine. 



Indication (tn-dii-a' '-shun) [indicatio, an indication]. 

 A sign or symptom, especially when it points out the 

 proper course of treatment ; the inference drawn from 

 the various symptoms or signs in any particular case. 



Indicator [in f -dik-a-tor) [indicare, to point out]. I. 

 The index-finger. 2. The extensor indicis muscle. 

 See Muscles, Table of. 



Indicium [in-disk' '-e-um) [L. : pi., Indicia]. A symp- 

 tom or sign ; a discriminating or diagnostic mark. 



Indifferent {in-dif f -er-ent) [in, not ; differens, differ- 

 ent]. I. Not specially differentiated. 2. Not acted 

 upon in a special way by any reagent. 



Indifferentism [in-dif / -er-ent-izm) [in, not; differens, 

 different]. Lack of special differentiation. 



Indifulvin [in-de-ful ' '-vin) [Iv6ik6v, indigo ; fulvus, 

 yellow]. A yellowish substance occurring in two vari- 

 eties, and produced by the action of dilute acids on 

 indican. 



Indifuscin (in-de-fus / -in) [iv6uc6v, indigo; fuscus, 

 dark], C t II., N.,O 9 . A substance produced by the ac- 

 tion of dilute acids on indican. 



Indigenous [in-dij'-cn-us) [indu, in ; "ignere, to be- 

 get]. Native, and not exotic. Originating or belong- 

 ing to a certain locality or country. 



Indigestion {in-di-jes' '-chun) [indigestio ; in, not; 

 digerere, to digest]. Same as Dyspepsia. 



Indigitation [in-dij-it-a' -shun) [in, in ; digitus, a fin- 

 ger]. A displacement of a part of the intestine by in- 

 tussusception. 



Indiglucin [in-de-glu' '-sin) [Iv6ik6v, indigo; -//rsn. 

 sweet], 6 fi H ]n r> . A yellow syrup, one of the decom- 

 position products of indican. 

 39 



Indiglycin {in-de-gli'-sin). Same as Indiglucin. 

 Indigo {in'-dig-d) [Iviiieov, indigo], A blue pigment 

 formed during the fermentation of In ■ anil, I. 



tincioria, and other species. It is insoluble in alcohol 

 or water, but freely soluble in strong sulphuric acid; 

 it 1- used mainly in the arts as a dye-stuff. Chemic- 

 ally, it i- a mixture of < reral principles, tin- chief 

 being a blue coloring-matter, indigotin. Therapeutic- 

 ally, it is an irritant to the mucous membrane of the 

 alimentary tract, producing intense nausea. It has 

 been used advantageously in epilepsy, chorea, and 

 convulsions, in doses varying from 3ij-^ij daily. 

 Unof. I. -blue, C| H K( N.,< ).,. Indigotin ; a chromo 

 gen found in ordinary indigo, of which it constituti - 

 the principal ingredient. It is also derived from 

 wood {/satis tincioria). It occurs in the plant as 

 a glucosid, i ndican. Indigo-blue is a dark-blue pow- 

 der with • reddish glimmer; it becomes metallic and 

 copper-like under pressure. It is insoluble in water, 

 alcohol, and ether, and is odorless and tasteless. It 

 dissolves in hot anilin with a blue color, and crystallizes 

 from hot oil of turpentine in beautiful blue plates. 

 I. -brown, a resinous substance of a brown color, ob- 

 tained by boiling an aqueous solution of indican with 

 an acid. It is composed of a mixture of indihumin, 

 C ]0 HyNO3, and indirhetin, C 18 H 17 N0 5 , the former 

 soluble and the latter insoluble in alcohol. I.-car- 

 min, a sodium salt of indigotin-disulphonic acid ; it 

 is used as a blue dye, a washing-blue, and is a delicate 

 test for sugar. I.-carmin Test for Sugar ; put 

 in 30 minims of water one part each of indigo-carmin 

 and sodium carbonate ; heat gently to solution ; add 

 one drop of urine, and boil quietly. A change to red 

 or yellow indicates sugar. See Tests, Table of. I. 

 Extract. See Indigo-carmin. I.-red. See Indi- 

 rubin. I. -white, C Ifi H 12 N.,0.,. Indigogen; a sub- 

 stance obtained by the reduction of indigo-blue. It 

 occurs as a white crystalline powder, soluble in alco- 

 hol, ether, and the alkalies, with a yellowish color. 

 It rapidly reoxidizes to indigo-blue by exposure to the 

 air. I., Wild. See Baptisia. 

 Indigogen [in' ' -dig-o-jen). See Indigo-white and Uro- 



xanthin. 

 Indigotin [in-dig-o' '-tin). See Indigo-blue. 

 Indigouria (in-dig-o-td-re-aJi) [IvdtK&v, indigo; ovpov, 

 urine]. The presence of indigo in the urine ; it is 

 due to a decomposition of indican. See Cyanurin. 

 Indihumin (in-de-hu'-min). See Indigo-broivn. 

 Indirect (iu-di-rekt') [in, not ; dirigere, to be in a 

 straight line]. Not direct. I. Division of Cells. 

 See Karyokinesis. I. Segmentation. See Karyo- 

 kinesis. I. Vision, that perception of an object in 

 which the image falls on some other spot than the 

 macula. 

 Indirhetin [i>i-dir-e'-tin). See Indigo-brown. 

 Indirubin [in-de-ru' '-bin) [Ivdtndv, indigo ; rubum,T&H\, 

 (_',,. I I, (1 N.,( >.,. A substance isomeric with indigo- 

 blue, and very similar in its entire character to this 

 substance. It is produced by effecting the conden- 

 sation of indoxyl with isatin by means of a dilute 

 soda-solution. It is also called indigo-red. 

 Indisin (in* -dis-in\. Same as Mauvein,q.v. 

 Indisposition {in-dis-po-zish' -un) [inaispositio, unsuit- 

 ablenes-]. \ny -light illness or disturbance of the 

 functions of the body. 

 Indissoluble [in-dis / -o-lu-bl). See Insoluble. 

 Indium [in'-de-um) [indicum, indigo, so-called from 

 its indigo-blue spectral line]. A rare metal. Symbol 

 In., atomic weight, 113.7. It is very soft, and resi m- 

 bles lead in its properties. See Elements, Table of. 

 Individual (in-div-id / -u-al) [in. not; dividere, to di- 

 vide]. A single being; one of a group or species. 



