RI Health Abbreviation

Retroactive Inhibition

Routinc Immunization

Routine Immunisation

Refractive Index

(ASTM D 1218) number indicating the angle through which a ray of light is deflected as it passes through a solid or fluid medium; the number that expresses the ratio of the sine of the angle of incidence to the sine of the angle of refraction. Typically used for monitoring water-based fluids or solutions. The ratios of the velocities of light in a medium and in air under the same conditions. Measured by the ratio of the sines of the angles of incidence and refraction.

Radiation Intensity

Recommended Intake

Regular Gnsulin

Respiratory Illness

Respiratory Indem