

REFLEXA 



1247 



REGIO 



eflexa (re-fleks' -ah) [L.]. See Decidua reflexa. 

 eflexed (re-fiekst f ) [refiectere, to bend back]. In bi- 

 ology, curved abruptly backward. Applied to sepals, 

 petals, etc. 



eflexio (re-fleks'e-o) [L.]. See Reflection. R. pal- 

 pebrarum. See Ectropion. 



eflexogenic (re-fleks-o-jen' -ik)[reflexus, reflex ; ytwav, 

 to produce]. Causing or increasing a tendency to 

 reflex action ; producing reflexes, 

 eflexometer -fleks-om' -et-er) [reflexus, reflex ; 



a measure]. An instrument used to measure the 

 force required to produce myotatic movement, 

 eflux (re'-fluks) [refiuxus ; re, back ; fluere, to flow]. 

 Any return of a current by reversal along its former 

 :our?e. 



<:foulement(ra-/W / -w0M( < ^)) [Fr.]. A forcing back. 

 R.du sacrum en arriere, a backward inclination of 

 .be sacrum that marks one of the changes in the pelvis 

 ; Df girls at puberty. 



:fracted (re-frak' -ted) [refractus, p. p. ol refrangere, 

 i jreak back or up]. In biology, bent suddenly, so as 

 :o appear broken at the bend. 



jfraction (re-frak' -shun) [refractio ; re, up or back ; 

 i e rangere, to break]. The deviation of light from a 

 ; itraight line in passing obliquely from one transparent 

 nedium to another of different density. R., Angle of, 

 he angle formed by a refracted ray of light with the per- 

 pendicular at the point of refraction. R., Atomic, 

 he product of the refractive index of the constituent 

 dements of a compound and their atomic weights. 

 R., Coefficient of, the quotient of the sine of 

 he angle of refraction into the sine of the angle of 

 incidence. R., Double, the power possessed, e. g., 

 ;>y Iceland spar, of dividing a ray of light and thus pro- 

 . double image of an object. R., Dynamic, 

 the static refraction of the eye, plus that of the accom- 

 modative apparatus. R., Errors of, departures from 

 jthe power of producing a normal or well-defined image 

 jupon the retina, because of ametropia. R. of the 

 lEye, the influence of the ocular media upon a cone or 

 jbeam of light, whereby a normal or emmetropic eye 

 produces a proper image of the object upon the retina. 

 R.-image. See Image. R., Index of, the re- 

 fractive power of any substance as compared with air. 

 R., Molecular, the molecular weight of a compound. 

 ' Hie molecular refraction of a liquid carbon compound 

 jis equal to the sum of the atomic refractions. R., 

 Static, that of the eye with paralyzed accommoda- 

 tion. 



:fractionist (re-frak' -shun-ist) [refrangere, to break 

 i -ip]. One who corrects errors of ocular refraction, or 

 jnetropia. 



fractive {re-frak' '-tiv) [refrangere, to break up]. 



Tending to refract. Capable of being turned from a 



traight line. R. Equivalent. See Refractive 



°ower. Specific. R. Index. Same as Refraction, In- 



'ex of, q. v. R. Power, the measure of influence 



>vhich a transparent body exercises on the light which 



asses through it. R. Power, Specific, an almost 



ronstant quantity representative of the relation between 



ae coefficient of refraction, the temperature, and the 



pecific gravity of a given fluid. 



i fractometer (re-frak-tom' -et-er) [refrangere, to break 



p; uirpov, measure]. I. An instrument for measur- 



ig the refraction of the eye. 2. An instrument for 



ie determination of the refractive indices of liquids. 



J fractory (re-frak' -tore) [refrangere, to break up] . I . 



ig treatment. 2. Resisting the action of heat ; 



low to melt. 



J fracture (re-frak' -tur) [refrangere, to break up] . 



I Tie re-breaking of fractured bones that have joined 



ftuitv or improper union. 



u 



Refrangibility (re-fran-jib-il' -it-e) [L. , refrangere, to 

 refract]. In optics, capability of being bent away 

 from a straight line ; a property shown by a ray of 

 light in passing obliquely from one transparent medium 

 into another of different density. 

 Refresh (re-fresh') [L., re, again; friscus, new]. In 

 surgery, to restore the character of a fresh wound ; as 

 to refresh the edges of a fissure before closing it. 

 Refreshing (re-fresh' -ing) [re, again; friscus, fresh]. 

 Tending to refresh ; invigorating ; reviving. R. Ac- 

 tion (of the electric current). The restoration of 

 excitability after fatigue by the effect of voltaic alter- 

 natives. 

 Refrigerant (re-frij' -er-ant) [refrigerans, making cool]. 

 A medicine or agent having cooling properties, or 

 lowering bodily temperature. 

 Refrigerated (re-frif -er-a-ted) [refrigerare , to make 

 cool again]. Cooled ; made cool. R. Meat, meat 

 which is kept at a temperature of from 36 to 40 F. 

 from the time of slaughter until used. 

 Refrigeration (re-frij-er-a' -shun) [refrigeratio, a cool- 

 ing again]. The act of lowering the temperature of 

 a body, by conducting away its heat to a surrounding 

 cooling substance. 

 Refrigeratory (re-frij' ' -er-a-tor-e) [L. , refrigeratorius~\. 

 A condenser. Also, a vessel filled with ice or with 

 cold water for maintaining a low temperature. 

 Refuse (ref'-uz) [L. , refusus, restored]. Waste from 

 manufacturing establishments, and all inorganic waste. 

 Refusion (re-fu'-zhun) [refusio, an overflowing]. The 

 act of withdrawing blood from the vessels, freeing it 

 from poisonous substances, and passing it back again. 

 Regenerate (re - Jen' '- er •- at) [regenerare, to generate 



again]. To generate anew ; to reproduce. 

 Regeneration (re-jen-er-a' -shun) [regeneratio ; regen- 

 erare, to beget]. 1. The new growth or repair of 

 structures or tissues lost by disease or by injury. 2. 

 In chemistry, the process of obtaining from the by- 

 products or end-products of an operation a substance 

 which was employed in the earlier part of the opera- 

 tion. R., Cell-processes in, these consist in either 

 simple hypertrophy (increase in the size of existing 

 cells), or numerical hypertrophy, hyperplasia, increase 

 in the number of cells in the tissue. R. after In- 

 flammation, repair by multiplication of the tissue- 

 cells. R. after Necrosis, repair by absorption of 

 dead tissue and its replacement by newly formed 

 normal tissue. R., Pathologic, the renewal of 

 destroyed tissue by a pathologic rather than a physio- 

 logic process. 

 Regenerative (re-jen' '-er-a-trv) [regenerare, to regener- 

 ate]. Tendency to regenerate. R. Inflammation. 

 See Inflammation. 

 Regenesis (re-jen' '-es-is) [regenerare, to generate anew]. 



The state of being reproduced. 

 Regime (ra-zhem') [Fr.]. See Regimen. 

 Regimen (rej'-im-en) [regimen, guidance]. The 

 methodic and systematized use of food, and the sani- 

 tary arrangement of surroundings essential to the pre- 

 servation of life, both in health and in disease. 

 Regina Purple. Same as Rosanilin Violet. 

 Regio (re'-jc-o) [L.]. See Region. R. aulica, the 

 region about the aula and portas (foramina of Monro). 

 R. cardiaca, the region of the heart. R. cox- 

 arum, the lower portion of the lumbar region. 

 R. germinativa, of Waldeyer, the germ-epithelium 

 of the embryo. R. glutea. the region about the 

 gluteal muscles. R. subthalamica, the area between 

 the ventral face of the thalamus, the body of Luys, and 

 the red nucleus. It consists of a fine, felt-likemass of 

 fibers, whose relations are so obscure that even their 

 boundary is not well determined (zona incerta). 



