refrangible

Type I is distinguished by the intensity of the light in the more refrangible end of the spectrum, the blue and violet.

Light is decomposed by the prism, because its component parts are refrangible in different degrees, by the same refracting medium.

A yellow solution of picric acid also allows the green to pass, but quenches all the more refrangible light.

The spectrum has fluted bands shaded from blue to red, and sharply defined at the more refrangible edge.

Hence, in this case, the more refrangible rays are the most chemically active.