EXCITO 450 EXCURVATION 



TABLE OF THE EXANTHEMATA. 



Excito- (ek-si'-to-) [excitare, to rouse]. A Latin prefix 

 denoting stimulation or excitation. E. -motor, excit- 

 ing or arousing motor function ; also, a drug or agent 

 that increases activity of the motor nerve-centers. 

 E. -nutrient, arousing or quickening the processes 

 of nutrition. E. -reflex, pertaining to a reflex action 

 that ends in muscular action. E. -secretory, arous- 

 ing the function or process of secretion. E. -vaso- 

 motor, carrying stimulus to vaso-motor centers. 



Excitor [ek-si f -tor) [excitare, to rouse]. One who or 

 that which stimulates or excites. 



Exclave (eks-kldv' , eks-klahv') [Fr.J. A detached 

 portion of any organ, as of a pancreas or ovary. 



Exclusion (eks-klu'-zhun) [excludere, to shut out]. A 

 shutting out. E., Diagnosis by, the reaching of a final 

 or most probable diagnosis by successively excluding 

 one hypothesis after another, as impossible, from a 

 consideration of the symptoms. 



Excochleation (eks-kok-le-a'-shun) [ex, out; cochlea, 

 shell, spoon]. The scraping out of material with the 

 curet. 



Excoriation (eks-ko-re-a'-shun) [ex, from; corium, the 

 skin]. 1. Abrasion or removal, partial or com- 

 plete, of a limited portion of the skin. 2. A lesion of 

 the skin in which, as a rule, the surface is denuded 

 only as far as the stratum muensum. It heals with- 

 out leaving a scar. It is usually seen in pruritic dis- 

 eases. 



Excrea:ion (ex-kre-a'-shun). See Exscreation. 



Excrement (eks f -kre-ment ) [excemere, to separate ; to 

 excrete]. An excreted substance; the feces. 



Excrement (eks> ' -kre-ment) [excrescere, to grow out]. 

 An old name for the hair, nails, etc. 



Excrementitious (eks-kre-men-tish' -us) [excemere, to 

 separate ; to excrete]. Pertaining to the excrement. 



Excrescence (eks-kres' -ens) [excrescere, to grow out]. 

 An abnormal outgrowth upon the body. See Cauli- 

 flower Excrescence. 



Excreta (eks-kre' '-tah) [pi. ; excemere, to separate]. 

 The natural discharges of the body, particularly those 

 of the bowels ; feces. 



Excretin (eks' -kre-tin) [excemere, to separate], 

 C 20 H. m O. One of the constituents of feces. It occurs 

 in little leaves or tufts mixed with needles, insoluble 

 in cold or hot water, soluble in hot alcohol and ether ; 

 its reaction is neutral. 



Excretion {eks-kre' -shun) [excretio ; excemere, to ex« 

 crete]. The separation of the waste products of an 

 organ, or of the body as a whole, out of the blood. 

 The material so excreted. 



Excretory [ek^-kre-tor-e) [excretio : excemere, to 

 excrete]. Pertaining to excretion. E. Duct, a 

 canal conveying the excretion from the excretory 

 organ to the discharging point. See Duet. 



Excurrent {eks-kur 1 '-ent) (ex, out; currere, to run]. 

 Leading or going outward, as an excurrent canal. 



Excurvation (ex-kur-va' '-shun) [ex, out; curva 

 curve]. A deformity of the eyelid affecting almost 



