INWARD 



624 



IONTHUS 



from a type, or undergo degenerative changes, prob- 

 ably as a result of nutritive variation. They are free 

 in filaments, flat layers, or cube-like packets. 



Inward [in' -ward} [ME. , inward, inward] . Toward the 

 center. I. Convulsions. Synonym of Laryngismus 

 stridulus. 



Iodal {i'-o-dal) [laxh/g, like a violet], C 2 I 3 HO. A com- 

 pound formed on the type of chloral, but containing 

 iodin instead of chlorin. It is reported to resemble 

 chloral in its sedative qualities, but is seldom used as 

 a remedy. Unof. 



Iodantipyrin (i-o-dan-tip-i' -rin). See Iodopyrin. 



Iodate (i'-o-dat) [I66r/g, like a violet]. Any salt of 

 iodic acid. 



Iodated (i' -o-da-ted) ^ludtjg, like a violet]. Charged 

 with iodin. 



Iodatum (i-o- da' -turn) [lutiqg, like a violet]. Charged 

 with iodin. Amylum iodatum, iodized starch. 



Iodia (i-o'-de-ah) [iodr/g , like a violet] . A proprietary 

 remedy said to contain stillingia, menispermum, etc. , 

 with five grains of potassium iodid and two grains 

 of iron phosphate in each fluidram. Dose as an 

 alterative, 3 j-ij. 



Iodic Acid {i-od'-ik). See Acid. 



Iodid (i'-o-did) [Icodr/g, like a violet]. A compound 

 of iodin with a metal or other substance. 



Iodidum (i-o-di'-dum) [ludyg, like a violet : gen. 

 Iodidi\ An iodid. 



Iodin, or Iodum (i'-o-din, or i-o / -dum) [iudqg, like a 

 violet]. I = 126.53 ; quanti valence 1 ; specific gravity 

 4.948 at 1 7 C. (62. 6° F.) A non-metallic element 

 with metallic luster, volatilizing at a low temperature, 

 and giving off a crimson-purple vapor. It occurs in cod- 

 liver oil, in most marine plants, and in shell-fish. It 

 is soluble in alcohol, in solution of potassium iodid, and 

 in solution of sodium chlorid. In its elementary state 

 it is an irritant to the skin, and is much used as a tincture 

 to produce counter-irritation. See Elements, Table of. 

 Potassium iodid, the principal form for internal use, is 

 an alterative, ranking as a specific in tertiary syphilis, 

 and with mercury, available in all forms of that disease. 

 It is also an excellent remedy in hepatic cirrhosis and 

 chronic bronchitis. Combined with ammonium it is 

 valuable in catarrhal affections. Acidi hydriodici, 

 Syr., contains one per cent, of the absolute acid. 

 Dose^j-iv. Ammonii iodidum. See Ammonium. 

 Iodized Phenol, unof, a mixture of iodin and car- 

 bolic acid, usually I to 4. For local use. I., Lini- 

 ment (B. P.), one part of iodin in nine. I., Liquor 

 (B. P.), one of iodin in 20. Iodi, Liq., Comp., Lu- 

 gol's solution — iodin 5, potassium iodid 10, water 85 

 parts. Dose rr^ j-x, diluted. I., Tinct., 8 per cent, in 

 alcohol. Dose n\j-v. For local use. I., Trichlorid, 

 unof., recommended by Langenbach as an antiseptic 

 in surgery. I., Ung., iodin 4, potassium iodid I, water 

 2, benzoated lard 93 parts. I., Vapor (B. P.), for 

 inhalation, 3 j of iodin to £] of water. Amylum 

 iodatum, iodized starch, iodin 5, starch 95 parts, dis- 

 tilled water 100 parts, triturated and dried. Dose 3 j- 

 3j. Potassii iodidum, KI. Dosegr. v-^j. Potass, 

 iodid., Ung., contains potass, iodid. 12, sod. hypo- 

 sulph. 1, boiling water 6, benzoated lard 81 parts. 

 Sodii iodidum, Nal, deliquescent. Dose gr. v-zij. 

 I. -green. See Pigments, Conspectus of. I. -scarlet. 

 See Pigments, Conspectus of. I. -violet. See Pig- 

 ments, Conspectus of. 



lodism yi'-o-dizm) [i<M;?c, like a violet]. A condition 

 arising from the prolonged use of iodin or iodin- 

 compounds, marked by redness of the conjunctiva and 

 of the mucous membrane of the respiratory passages, 

 furry throat, and lacrymation, with symptoms resem- 

 bling these of acute coryza. 



Iodized (i f -o-dlzd) [^1667/g, like a violet]. Impregnated 

 with iodin, as cotton, glycerin, etc. 



Iodoform (i-o' '-do-form) [luityg, like a violet ; forma, 

 form]. Tri-iodo-methane, CHI 3 . Iodid of Formyl. 

 A compound containing about 91 per cent, of iodin. 

 It is an antiseptic and feeble anesthetic, and is highly 

 useful for local application to wounds, abrasions, and 

 indolent sores. Internally it is a tonic. It seems to 

 exert a special influence upon tuberculous proi 

 Its odor may be disguised by means of thymol or oil »f 

 rose. Dose, internally, gr. j-v. I., Suppos. (B.P.), 

 each containing gr. iij of iodoform. I., Unguent., for 

 fetid sores. 



Iodoformism {i-o' ' -do-form-izm) [ludr/g, like a violet ; 

 forma, form] . Poisoning with iodoform. 



Iodoformize (i-o'-do-form-lz) [ludr/g, like a violet; 

 forma, form]. To impregnate with iodoform. 



Iodol (i'-o-dol) \\d6i]g, like a violet], C 4 I 4 NH. An 

 iodo-carbamid existing in the form of an amorphous 

 brown powder, soluble in ether and oil. It is more ac- 

 tively antiseptic than iodoform and is free from odor. 

 Locally it is an anesthetic, and favors granulation. It 

 is of reputed service as an application to syphilitic 

 sores, etc. Dose gr. ss— v. Unof. 



Iodo-naphthol-beta (i-o-do-naf -thol-ba' -tali) [iufir/g, 

 like a violet; vacpda, naphtha; (jera, the second 

 Greek letter]. The diiodid of naphthol-beta, sug- 

 gested as a substitute for iodoform as an antiseptic 

 dressing. Unof. 



Iodophenin (i-o-do-fe' -nin) [ludrjg, like a violet ; 

 phenyF\. A compound allied to phenacetin. It is an 

 efficient bactericide, but is objectionable because of its 

 strong evolution of iodin, of which it contains about 

 50 per cent. It is a crystalline powder, of an iodin-odor 

 and a burning taste, and colors the skin yellow. It 

 melts at 266 F. (130 C.) Unof. 



Iodophthisis (i-o-doff' -this-is) [iwdz/c, like a violet ; 

 (pflloig, a wasting]. The emaciation, or local or 

 general wasting that may result from free use of iodin 

 as a remedy. 



Iodopyrin (i-o-do-pi' -rin) [<w<%c, like a violet ; 

 fire]. Iodantipyrin. A chemic compound of iodin 

 and antipyrin, with the composition, C n H n IN\,( >. 

 It is an antipyretic in doses of from one to five grains. 

 Unof. 



Iodo-quinin Sulphate. Same as Herapathite. ' 



Iodosis [i-odo'-sis). Same as lodism. 



Iodotannin (i-o-do-tan'-in) \_ld)fir/g, like a violet; ME., 

 tannen, to tan]. An aqueous mixture of iodin'and 

 tannin. 



Iodotherapy {i-o-do-ther / -ap-e) \\L5r)g, like a violet ; 

 Bepaireia, therapy]. The treatment or cure of di 

 by the use of iodin or its compounds. 



Iodum {i-o'-dum). See Iodin. 



Iodure \i'-o-diir) [Fr. ]. An iodid. 



Ioduret (i-od' -u-rct) [<w(T//c, like a violet]. An iodid. 



Ion (i'-on) [iwv, lov, going]. An element set fr 

 electrolysis, and classified as an anion or /ration, ac- 

 cording as it is set free at the positive or negative pole. 

 I., Migration of, the transference of an ion from one 

 pole to another. 



Ionidium [i-o-nid' -e-um) \}ov, a violet]. A genus of 

 violaceous herbs and shrubs. I. ipecacuanha, 

 produces what is called white ipecac ; this and si 

 other species are emetic and cathartic. Se< 

 Cuichunchulli. None is officinal; but the mot- ol 

 several species are said to be mixed with commercial 

 ipecac. 



Ionthus (i-on'-tluis) [iovdog, acne]. That form of acne 

 that often accompanies the first appearance of the 

 beard. A general name for acne and the diseases that 

 resemble it. 



