R stands for various terms. Discover the full forms, meanings, and possible interpretations of R across different fields and industries.
A methodof measuring refractive errors in the eye using a retinoscoperetireirement
Common MedicalMedicalOptometryRoentgen is a unit of measurement for the amount of ionizing radiation that produces 2.1 x 10^9 units of charge in 1 cm³ of air at STP. In SI units, 1 Roentgen (R) = 2.58 x 10^-4 C/kg.
Common MedicalMedicalPhysicsScientific & EducationalVeterinaryOne of a family of lines (rays) used to represent the propagation of an electromagnetic wave; most useful in real media when the wave amplitude varies slowly compared to the wavelength (geometrical optics).OR A half-line. Continues forever in one direction. Has one endpoint.
AstronomyScientific & EducationalA method of fixing components together using adhesives and glues
ChemistryScientific & EducationalLast updated: