(quantum theory) the theory that it is impossible to measure both energy and time (or position and momentum) completely accurately at the same time
being unsettled or in doubt or dependent on chance
the state of being unsure of something
a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct
a rule or standard especially of good behavior
a basic truth or law or assumption
a rule or law concerning a natural phenomenon or the function of a complex system
(law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)
rule of personal conduct
