

IOPTEROUS 



625 



IRIDORRHEXIS 



Iopterous (i-op'-ter-us)[lov, a violet ; Tvrepov, a feather]. 

 In biology, having violet-colored wings. 



Iotacism (i-o / -tas-t://i) [iuraiaafioc, iotacism]. I. In- 

 ability to pronounce distinctly the proper sound of the 

 letter /'. 2. Substitution of the long e sound for the e 

 sounds of other vowels. 



Ioterium (i-o-te'-re-um) [ioc, poison ; repieiv, to pierce : 

 loterid\. In biology, a poison-gland. 



Ipecac (ip'-e-kak). See Ipecacuanha. I., American. 

 iillenia. I., White. See lonidium. 



Ipecacuan (ip-e-kak' '-u-an). See Ipecacuanha. 



Ipecacuanha (ip-e-kak-u-an'-ah) [Braz. , ipecaaguen\. 

 Ipecs". The root of Cephaelis ipecacuanha, found in 

 Brazil. It contains an alkaloid, emetin, C^H^XOj, 

 and is an emetic, expectorant, and cholagogue ; in very 

 small doses, gr. )/%, it is a mild tonic. It is used mainly 

 as a safe and prompt emetic, in membranous croup, and 

 in the summer diarrhea of children. Dose as an 

 expectorant gr. ss-ij ; as an emetic gr. xv-xxx. I., 

 Acetum. (B. P.) Dosern_v-xl. I.,Ext.,Fld. Dose 

 n\j-v. I., Syr., 5 per cent, strength. Dose 3J-5SS. 

 I., Vin., 7 per cent, in strength. Dose try- 3 j. I., 

 Trochisci, contain each % gr. of the drug. I. et mor- 

 phinae, Trochisci, contain each,morphin sulph. gr.^,, 

 ipecac gr. T ^, with flavoring-oil and sugar. Let opii, 

 Pulvis (Pulv. ipec. comp., B. P.) Dover's pow- 

 der, contains ipecac and opium each 10, sugar of 

 milk 80 parts. Dose gr. ij-xv. I. cum scilla, Pil. 

 (B. P.) Dose gr. v-x. I. et opii, Tinct., deodor- 

 ized tinct. of opium loo, evaporated to 85, fid. ext. 

 ipecac 10, alcohol q. s.. ad 100. Dose n\v— xxx. 

 Emetin. Dose as an expectorant gr. jhjj-Tfi > as an 

 emetic J s-X- 



Ipomcea (ip-o-me' '-ah) (\ip, worm ; oftoioc, like]. A 

 genus of convolvulaceous plants ; bindweeds. I. 

 batatas is the sweet potato. I. purga. See Jalap. 

 I. pandurata, of the U. S. , resembles jalap in its 

 action. The seeds of I. ccerulia are recommended as 

 a useful intestinal stimulant. I. turpethum affords tur- 

 peth-root,^.:. Many other species are medicinal. Unof. 



Iralgia (i-rai' -je-ah). See Iridalgia. 



Irascibility (i-ras-ib-il'-it-e) [irasci, to be angry] . The 



' quality of being choleric, irritable, or of hasty temper. 

 It is a frequent symptom in some varieties of insanity 

 and in neurasthenia, and in some cases it amounts to a 

 species of insanity. 



See Iridemia. 



Relating to the iris. 

 [iptC, iris; d/.yoc, pain]. 



Iridaemia {ir-id-e'-me-ah) 



Iridal (i'-rid-al) [iptc, iris] 



I ridalgia (i-rid-al '-je-ah ) 

 Pain referable to the iris. 



Iridauxesis (ir-id-a^cks-e'-sis) [ipic, iris; aviate, in- 

 crease]. Auxesis or tumefaction of the iris. 



lridavulsion (ir-id-av-ul'-shun) [iptc, iris; avellere, to 

 tear away] . Surgical avulsion of the iris. 



Iridectome (ir-id-ek' -torn) [ipic, iris ; iicrouq, a cutting 

 out]. A cutting instrument used in iridectomy. 



Iridectomy (ir-id-ek' -to-me) [ipic, iris ; kurofi^, ex- 

 cision]. The cutting out of a part of the iris. I., 

 Antiphlogistic, one performed in inflammatory pro- 



1 cesses for therapeutic purposes. In Optic I. the piece 

 of iris excised is over a portion of the lens or beneath 

 a portion of cornea clearer than that exposed in the 

 natural pupil, as a result of which additional vision is 

 gained. See Pupil, Artificial. I., Preliminary, is 

 performed in advance of the extraction of cataract, 



I instead of at the same time, 

 "idectropium (ir-id-ek-tro' -pe-um) [Ipic, iris ; £ktp6tzuxv, 

 eversion]. E version of a part of the iris, 

 "idemia {ir-id-e'-me-ah) [iptc, iris ; aiua, blood]. 

 Hemorrhage from the iris. 



ridencleisis, or Iridenkleisis (ir-id-en-kli'-sis) [ipic, 

 iris ; zyK/.Elv, to lock in]. See Iridodesis. 



40 



Iridentropium (ir-id-en-tro* -pe-um) [ipic, iris; evrporrf/ 

 a turning in]. Inversion of a part of the iris. 



Irideremia (ir-id-er-e / -me-ah) [ipic, iris; kpijfiia, lack]. 

 Absence of one or both iride^. 



Iridescence (ir-id-es'-ens) [iridescere, to shine with 

 rainbow-colors]. The property of breaking up light 

 into the spectral colors. 



Iridesis (ir-id-e / -sis). See Iridodesis. 



Iridian (i-rid ' -e-an) [Zp^c, iris]. Relating to the iris; 

 iridal. 



Iridicolor (ir-id' -ic-ul-or) [iris, a rainbow; color, color]. 

 In biology, iridescent ; exhibiting prismatic colors. 



Iridin (i' -rid-in) [ipic , iris]. Irisin ; a precipitated ex- 

 tract of Blue Flag. See Iris. 



Iriditis (ir-id-i'-tis). Same as Iritis. 



Iridization (ir-id-iz-a' '-shun) [Ipic, iris]. The subjec- 

 tive appearance, as of an iridescent halo seen by per- 

 sons affected with glaucoma. 



Iridocele (i-rid'-o-sel) [Ipic, iris; kt/?.?i, hernia]. Pro- 

 trusion of a part of the iris through a wound or ulcer. 



Iridochoroiditis (ir-id-o-ko-roid-i' -tis) [Ipic, his ; X°- 

 piov, chorion ; e\6oc, likeness ; trie, inflammation]. 

 Inflammation of both the iris and the choroid of the 

 eye, the form usually assumed in sympathetic oph- 

 thalmia. 



Iridocinesis (ir-id-o-sin-e'-sis). See Iridokinesis. 



Iridocyclitis (ir-id-o-sik-li'-tis) [ipic , his ; kikaoc, a 

 circle ; trie, inflammation]. Inflammation of the iris 

 and the ciliary body. See Cyclitis. 



Iridocyclochoroiditis (ir-id-o-sik-lo-ko-roid-i' -tis) [ipic, 

 iris ; KiK/.oc, circle ; x®P lov , chorion ; eI&oc, likeness ; 

 trie, inflammation]. Combined inflammation of the 

 iris, the ciliary body, and the choroid. 



Iridocyte (ir'-id-o-sit) [Iptc, rainbow; kitoc, cell]. 

 Any cell that produces color, either by means of its 

 structure or its contents. 



Iridodesis (ir-id-od'-es-is) [ipic, iris ; deaic , a binding 

 together]. An obsolete method of displacing the nor- 

 mal pupil by ligature, instead of iridectomy. 



Iridodialysis (ir-id-o-di-al'-is-is). See Coredialysis. 



Iridodonesis (ir-id-o-do-ne'-sis) [Ipic, iris ; 66vr/aic, a 

 trembling]. Tremulousness of the iris; hippus. 



Iridokinesis (ir-id-o-kin-e'-szs) [iptc, iris ; kivt/cic, 

 movement]. Any movement of the iris, normal or 

 otherwise. 



Iridomalacia (ir-id-o-mal-a'-se-ah) [ipic, iris ; fia/.aKta, 

 softness] . Morbid softening of the iris. 



Iridomotor {ir-id-o-mo' -tor) [ipic, iris ; movere, to move]. 

 Promoting the motion of the iris. 



Iridoncosis [ir-id-on-k(/-sis) [Ipic, iris; bynuoic, a 

 puffing out]. Thickening of the iris. 



Iridoncus (ir-id-ong / -kus) [Ipic, his; dyicoc, mass]. A 

 tumor or swelling of the iris. 



Iridoparalysis ( ir-id-o-par-al' -is-is) [ipic, his ; irapd- 

 '/vcic, paralysis]. Paralysis of the iris. 



Iridoparesis (ir-id-o-par' -es-is) [iptc, his; Tzapeaic, a 

 letting go]. A slight or partial paralysis of the iris. 



Iridopiania (ir-id-o-pla' -ne-ah) [iptc, iris ; ~VAvti, a 

 wandering]. Same as Hippus. 



Iridoplasma (ir-id-o-pla;' -mah) [ipic, iris ; rr7.aafj.a, 

 anything formed]. A form of degeneration of the 

 iris. 



Iridoplegia (ir-id-o-ple' -je-ah) [ipic, ins ; ^.riyfl, stroke]. 

 Paralysis of the sphincter of the iris. 



Iridoptosis (ir-id-op-to / -sis) [Ipic, iris ; jrrdxrtc, a fall- 

 ing]. Prolapse of the iris. 



Irido-pupillary (ir-id-o-pu' -pil-a-re) [ipic, ins ; pupilla, 

 the pupil of the eye]. Pertaining to the iris and the 

 pupil. 



Iridorrhexis (ir-id-or-reks' -is) [iptc, iris; p^f'f, a 

 breaking]. Iridectomy with iridavulsion. Rupture of 

 the iris. 



