R- may represent:
*a type of
chirality, in chemical notation
*an ''R'' prefix used for
various constants
*the set of negative
real numbers
*
negative reinforcement
In behavioral psychology, reinforcement is a consequence applied that will strengthen an organism's future behavior whenever that behavior is preceded by a specific antecedent stimulus. This strengthening effect may be measured as a higher freq ...
, in behavioural psychology
*membership of the United States
Republican Party, when placed before a state abbreviation, usually in parenthesis after the name of a politician
{{Disambiguation
