K I 



599 



[( HTHY< »TOXI< I M 



It somewhat resembles brucin, and is probably derived 

 from some species of Strophanthus. Unof. 

 Ice (is) [ME., ise, ice]. Water in its solid Mate, to 

 which it is reduced by a temperature of o° centigrade, 

 or 32 Fahrenheit. I. -bag, a l.a^ of waterproof ma 

 terial filled with ice, for application to any part of the 

 body. I. -cap, a bladder <>r rubber cap tilled with 

 pounded ice for application to the bead in caseof con- 

 gestion. I. -cot, abedcooled by ice, so as to reduce the 

 temperature of the patient. I. -cradle, a device that 

 consists in the suspension over a febrile patient in 

 heel, by means of iron frames or barrel-hoops, of a 

 number of zinc buckets kept half-filled with ice and 

 enclosed in a light covering. The patient is covered 

 with a muslin sheet and provision is made for the circu- 

 lation of pure air in the cradle. The temperature of 

 the patient is to be taken at leasl every tour hours, and 

 if it falls to ioo° the apparatus is to be removed. If a 

 sense of chilliness appears bot bottles are to be applied 

 to the feet. I. -poultice, or I. -compress, an applica- 

 tion of broken ice used tor local refrigeration. 

 Iceland {is'-land) [Ml... ise, ice; ME., land, land]. 

 An island of the Arctic Ocean. I. Moss. See Cetra- 

 ria. I. Spar, a transparent calcium carbonate, crys- 

 tallized in rhomboidal prisms. It has the property of 

 dividing and doubly refracting a ray of light. 

 Ichor {il-kor) [i^w/J, serum, or pus]. An acrid and 



thin puriform discharge from an ulcer or wound. 

 Ichoroid, or Ichorous (if -kor-oid, i'-kor-us) [<;)>>/}> 

 serum, or pus; eldog, like]. Resembling or relating 

 to pus containing serum and disintegrated tissue. 

 Ichorrhea (i-kor-e* -ah) [inup, pus; poiu, a flow]. A 



copious flow of ichor. 

 Ichorrhemia (i-kor-e' '-me-ah ) [< \up, ichor; aifia, blood]. 

 The presence in the blood of ichorous matter; septice- 

 mia; pyemia. 

 Ichthiasis (ik-thi'-as-is). See Ichthyosis. 

 Ichthidin (ik? -thid-in) [l^/'f, Ash]. A substance re- 

 sembling lardacein, but obtained from the eggs of 

 cyprinoid fishes. 

 Ichthin (ik'-thin) [Ix&ug, fish]. An albuminous sub- 

 stance obtained from the eggs of some fishes, and also 

 from cartilaginous fishes and frogs. 

 Ichthulin (ik'-thu-lin) [t;rt%C, a fish ; v'/tj, matter]. A 

 lardaceous substance, with the percentage-composi- 

 tion, C 52 . 5 H 8 N 15 . 2 SjP . 6 , found in the eggs of fishes 

 and in salmon. It is akin to ichthin and ichthidin. 

 Ichthyiasis [ik-the-i' '-as-is). Same as Ichthyosis. 

 Ichthyic (ik'-the-ik) [ix6vin6g, of a fish, fishy]. Per- 

 taining to, or resembling, a fish ; piscine ; ichthyoid ; 

 ichthyo-morphic ; icthyopsidan. 

 Ichthyisation [ik-the-iz-a' '-shun) [Ixdvg, fish]. In 

 biology the process of intensification of fish-like char- 

 acters. 

 Ichthyocolla [ik-the-o-kol'-ah) \lx6vg, fish; k6/><i, 

 glue]. Isinglass. The air-bladder of the sturgeon, 

 Acipenser huso. It occurs in horny, translucent, white 

 sheets, that form a jelly with hot water. It is the 

 purest form of gelatin, and is used as a food, for clari- 

 fying liquids, and as a test for tannic acid. I., Em- 

 plastrum, court-plaster ; it consists of isinglass 10, 

 glycerin I, alcohol 40, water and tinct. benzoin q. s. , 

 spread upon fine white silk bolting-cloth and dried. 

 Ichthyography (ik-the-og' -ra-fe) [i .y"'V, fish; ypatyeiv, 



to write]. A description of fishes; ichthyology. 

 Ichthyoid (ik'-the-oid) [t^flvc, fish ; eldog, form]. Re- 

 sembling a fish ; fish-like. 

 Ichthyol \ik'-the-ol) [<(""'. fish \ oleum, oil], < , II , 

 S.\a,O t ..' Sodium sulpho-ichthyolate. A preparation 

 obtained from certain varieties of fossiliferous shale oc- 

 curring in the Tyrolese Alps. It has a characteristic 

 bituminous odor and taste. It is a good antiphlogistic, 



and has proved efficient in eczema and psoriasis, and 

 in gynecology. It is used in the form of a 10 to 20 

 per tent, ointment, as a solution in glycerin, equal 

 [.arts, or in the pure state. I., German. \iol. 



Ichthyology \ ik-lhe-ol' -o-je ['!"''• fish ; 7J>\ •« . science]. 

 1 fie scieni e of fishes, their anatomy, distribution, 

 and bioli 

 Ichthyomorphic (ik-the-o-mor' ' -fik) [Ix^iig, a fish ; /.-. 

 form]. In biology, having the morphologic characters 

 of a fish ; ichthyopsidan. 

 Ichthyophagous (ik-the-ojf'-a, u [ dig, 



to eat]. Fish-eating. A word applied to such ani- 

 mals as subsist on lish. 

 Ichthyopterygium 1 ik-the-op-ter-ij' -e-um) [i 1 "< < . a fish ; 

 , a wing or fin]. The fore-limb or hind- 

 limb of a vertebrate, modified as a fin. 

 Ichthyosis [ik-the-o' -sis) \l^6vg, fish; vdaog, disease]. 

 Xeroderma ichthyoides, Ichthyosis vera, fish-skin dis- 

 ease; a congenital skin-disease, usually involving the 

 entire surface of the body, aggravated by cold, and 

 characterized by extreme dryness of the skin and by 

 •the development of epidermal plates coarsely resem- 

 bling the scales of a fish, and forming in some cases 

 verrucous growths, sessile and pedunculated, freely 

 projecting from the surface. I. congenita. See 

 Seborrhea squamosa neonatorum. I. follicularis, 

 a form in which the sebum and epithelium are he;;; 

 up around the orifices of the hair-follicles ; it is 

 especially seen upon the extensor surfaces of the arms 

 and legs. I. hystrix : Hystricismus ; a rare skin- 

 disease characterized by warty looking growths, con- 

 sisting of elongated and hypertrophied papillae, covered 

 by greatly thickened, dark-brown, horny epidermis, 

 and forming flat-topped or pointed, spinous projections. 

 These are grouped together to form patches, often 

 unilateral and distributed along the course of cutaneous 

 nerves. They are seldom present on the face. Usu- 

 ally they offer no subjective symptoms. I. linguae, 

 an acquired affection of the tongue in which it be- 

 comes dry and scaly. I. nacree. See /. simplex. 

 I. nigricans. See /. simplex. I. nitida. See /. 

 simplex. I. palmae vel palmaris et plantaris, 

 the exceptional form coxifined solely to the palms and 

 soles. I. sauroderma. See /. simplex. I. scutel- 

 lata. See /. simplex. I. sebacea. Synonym of 

 Seborrhea. I. sebacea cornea. See Darter's Dis- 

 ease. I. serpentina. See /. simplex. I. simplex, 

 the common form of ichthyosis in which the whole 

 surface has a tesselated appearance, from being covered 

 with large, angular, dirty-white, finely corrugated, 

 papery scales that are adherent, and therefore slightly 

 depressed in the center (/. scutellata), while the edges 

 are detached, transparent, and shining ( /. nacree or 

 /. nitida). In still higher grades the scales adhere 

 together to form thin plates, and being of a greenish 

 tint, resemble a serpent's skin (/. serpentina') ; when 

 there are still thicker plates, the appearance of a 

 crocodile hide is produced (/. sauroderma). The 

 older the plates the darker they become, so that they 

 may vary from olive-green to black (/.■ nigricans). 

 The hair is dry, harsh, and dull-looking, and the 

 scalp branny ; the nails may be pitted and brittle. 

 Itching is frequent. Warmth ameliorates the condition 

 by favoring sweating. I. spinosa, a form of /. 

 hystrix, in which the scales are spiny. I. vera. See 

 Ichthyosis. 

 Ichthyotic (ik-the-of-ik) [<;rt%c, fish]. Relating to or 



affected with ichthyosis. 

 Ichthyotomy 1 ik-the-ot' -o-me) \ljfibg, a fi.-h ; tout], a 



cutting]. The dissection or anatomy of fishes. 

 Ichthyotoxicum [ik-the-o-toks / -ik-um) [i;rt%c, fish; 

 toS-ikAv, poison]. A name loosely given to poisoning 



