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There are 4 names in this directory beginning with the letter R.
Recommended Daily Allowance (RDA or RfD)
The estimated amount of a nutrient (or calories) per day considered necessary for the maintenance of good health by the Food and Nutrition Board of the National Research Council/ National Academy of Sciences.

Reduction
The gain of electrons by an Atom or molecule; the loss of oxygen by an element. Opposite of Oxidation.

Regulations
Legal mandates established by governmental or inter-governmental agencies used to control how entities operate or transact.

Resistivity
A measure of how strongly a material opposes the flow of electrical current. A low resistivity indicates a material that readily allows the movement of electric charge. The SI unit of electrical resistivity is the ohm meter [Ω m]. Opposite of Conductivity.


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