FDA Pharmaceutical Quality/CMC Terminology
PQ/CMC Units of Measure Terminology
Derived Unit of International System of Units
Radian
A SI-derived unit of plane angle measurement defined and named by James Thomson in 1873. One radian is the plane angle between two radii of a circle that cuts off on the circumference an arc equal in length to the radius. There are 2pi radians in a complete circle. SI units: m/m = 1.
C1551047
C42543
FDA
HL7
Quantitative Concept
Rad
Radian
Radian
Radian
UCUM
rad
radian
Unit of Plane Angle Measurement
UCUM Terminology
HL7 Unit of Measure Terminology