Refractive

(re-frak' '-tiv). 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 a transparent body exercises on the light which a es 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). I. An instrument for measurig the refraction of the eye. 2. An instrument for ie determination of the refractive indices of liquids. J fractory (re-frak' -tore). I. ig treatment. 2. Resisting the action of heat; low to melt. u J fracture (re-frak' -tur). I Tie re-breaking of fractured bones that have joined ftuitv or improper union.