IMMUNIZATION' 



605 



IMPLANTATION 



matory action is inhibitive of bacterial development. 

 I., Acquired, that derived from a previous attack of 

 the same disease or from a modified form, as varioloid, 



■ or artificially produced bj inoculation. I., Artificial, 

 that produced by inoculation with the virus of adisi 

 I., Natural, tin- natural resistance of tin- tissues <>r 

 system. Immunization maj !"• transient or perma- 

 nent, relative or absi ilute. 



Immunization [im-mun-iz-a 1 'shun) [immunitas, ex- 

 emption]. The act or pro.,-- oi endowing with im- 

 munity. ' 



Immunize [im f -mun-lz) [immunis, exempt]. To give 

 or d i acquire immunity. 



Impact [im'-paki) [impactus : impingere, to drive into or 

 against], A forcible striking against. 



Impacted [im-pak' -ted) [impactus ; impingere, to drive 

 into or against]. Driven against and retained, as a 

 wedge. I. Fracture, one in which the fragments of 

 bone are driven into one another in such a manner as 

 to cause shortening. 



Impaction [im-pak' 'shun) [impactio, impact]. The 

 state or quality of being impacted; fracture with fixa- 

 tion of the fragment-; obstinate constipation; the 

 wedging of the fetal head in the pelvic canal. 



Impalement [im-pal* -ment) [in, in ; pal, a pale or 

 picket]. The perforation of the body or a part by a 

 rod or stake. 



Impalpable [im-pal f -pa-bl) [impalpabilis, impalpable]. 

 That which cannot be felt ; unappreciable by touch. 

 I. Powder, a powder so fine that its separate particles 

 cannot be felt. 



Impalsy [im-pawl'-ze) [in, in; ME.., palsey, palsy]. 

 To paralyze. 



Impaiudism [im-pal' '-u-dizm) [in, in ; palus, a marsh]. 

 Chronic malarial poisoning. 



Impar [im'-par) [in, not; pur, equal]. Odd or unequal. 

 I., Ganglion, a small ganglion on the coccyx. See 

 Ganglia, Table of 



Imparipinnate [im-par-ip-in r -at) [////par, unequal; 

 pinnatus, feathered]. In biology, unequally pinnate ; 

 having an odd leaflet at the apex. 



Impatiens [im-pa' -she-enz) [I... impatient]. Touch- 

 me-not; jewel-weed or balsamine ; a genus of gera- 

 niaceous plants. I. balsamina and I. lutea, of 

 the old world, and I. fulva and I. pallida, of the 

 U. S. , are diuretic, emetic, and cathartic. Unof. 



Impatiinid [im-pa' '-te-in-id) [impatiens, impatient]. A 

 resinous emetic principle obtainable from Impatiens 

 lutea. Unof. 



Impennate [im-pen'-at) [in, not; pennatus, winged]. 

 In biology, applied to such birds, as the penguin, as 

 have short wings covered with scale-like feathers. 



Impennous [im-pen'-us) [in, not ; penna, wing]. In 

 biology, without wings. 



Imperative [im-per' -at-iv) [imperativus, imperative]. 

 Peremptory ; absolute; binding. I. Idea. See Idea, 

 Imperati 



Imperatoria [im-per-at-o' '-re-ah) [imperatorius, be- 

 longing to a commander]. A genus of umbelliferous 

 plants; masterworts. I. ostruthium, false pellitory 

 of Spain, is an aromatic stimulant, once prized as a 

 polychrest remedy, but now little used. Unof. 



Imperfection [im-per-fek' shun) [imperfectus, imper- 

 fect]. A physical defect. 



Imperforate [im-per' '-for-at) [in, not ; perforare, to 

 pierce]. Congenitally and abnormally closed ; applied 

 to an opening of the body, as the ami-, vagina, etc. 

 See Occlusion and Obstruction. 



Imperforation {im-per-for-a' shun) [imperforatio ; /'//, 

 not; peYforare, to bore through] . Occlusion; applied 

 especially to the anus, hymen, vagina, etc. 



Imperial [im-pe r -re-al) [imperialis, pertaining to an 



empire]. Sovereign ; commanding. I. -blue. Same 

 Spirit-blue. I. Drink or Draft, potus imper- 

 ial) ition of a ball ounc< of potassium bitar- 



trate in three pints of hot water, to which are added 

 four ounces of sugar and half an ounce ol in »h lemon - 

 peel. It is a good diuretic and refrigerant drink. 

 I nof. I. granum, a farinaceous food tor infants. 

 It- composition is: Water S-t'», fat i.oi, a trace 

 each of gi ar and cam tarch ; v 



soluble carbohydrates ; 56, albuminoids 10.51, gum, 

 cellulose. ,tc., 0.50, ash 1.16. I. -green. Same 

 a- Schweinfurth jreen. I. -violet. Same as Rosan- 

 /'//'// 



Imperialin [im-pe'-re al-in) [imperialis, pertaining to an 

 empire]. An alkaloid from Fritillaria imperialis, or 

 crown imperial ; it acts upon the heart. Unof. 



Impermeable [im-per 1 '-me-a-bl ) [in, not ; per, through ; 

 meare, to go]. Not capable- of being traversed. 



Impervious [im-per 7 -ve-us) [in, not; pervius, capable 

 of passage]. Not permitting a passage through. 



Impetiginoid [im-pet-ij :/ '-in-oid) [impetigo, impetigo; 

 impetere, to attack; eldog, like]. Same as / 

 nous. 



Impetiginous [im-pet-ij f -in-us) [impetigo; i/i/petere, to 

 attack]. Affected with or resembling impetigo. 



Impetigo [im-pet-i' '-go) [impetigo; in/petere, to at- 

 tack]. An acute inflammatory skin-disease character- 

 ized by one or more pea-sized or finger-nail sized, 

 discrete, rounded, and elevated firm pustules, unat- 

 tended, as a rule, by itching or other subjective symp- 

 toms. The pustules are rounded, with thick walls, 

 and are surrounded by areola;. They appear suddenly, 

 and come out one after another during the first week 

 of the attack, attain full size, and then undergo ab- 

 sorption or crusting. No scar or pigmentation fol- 

 lows. The disease is likely to occur in children. I. 

 annua. See Aleppo Boil. I. capitis. Same as 

 Eczcn/a capitis. I. contagiosa, Porrigo eo//ta^ r iosa ; 

 an acute, inflammatory, contagious disease, due to the 

 presence of a microorganism, and characterized by 

 the appearance of vesico-pustules or blebs, that dry 

 into flat, straw-colored, granular-looking crusts. The 

 disease occurs usually in children. The vesicles vary 

 in size from minute points to that of a quarter of a 

 dollar, and the contents, at first serous, become sero- 

 purulent, and then dry up. The disease is most prone 

 to attack the face and hands. I., Duhring's, differs 

 from the foregoing by being non-infectious. See Dis- 

 eases, Table of. I. erysipelodes, an old term for 

 Eczei/ia pustulosum, with deeper inflammation than 

 usual. I.granulata. Same as is. I. her- 



petiformis, Herpes pyamicus ; a very rare disease of the 

 skin, characterized by the formation of superficial mili- 

 ary pustules, that may be discrete, but are usually closely 

 set. The contents of the pustules are at first opaque, 

 but become greenish-yellow, and dry up into dirty- 

 brown crusts. The disease spreads until the whole 

 surface is covered with swollen, crusted, and excori- 

 ated patches. It develops first on the inner side of 

 the thighs, and about the groins, navel, breasts, and 

 axilla-, and is mainly seen in pregnant women. The 

 termination is fatal, as a rule. I. rodens, an old term 

 for a carcinomatous disease of the skin. I. scabida, 

 an old term for Eczema pustulosum, with unusually 

 thick crusting. I. sparsa, an old term for small, 

 scattered patches of Eczema pustulosum. I., Syph- 

 ilitic. See Syphilid, Impetiginous. 



Impetus [im'-pe-tus) [!-•]• I- Force or momentum. 2. 

 The onset or attack of a disease, or of a paroxysm. 



Implantation [im-plan-ta'shun) [implantatio ; in, in ; 

 plantare, to set]. The act of setting in. Also, the 

 transplantation of a tooth from the jaw of one person 



