(physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them
of or relating to or caused by gravitation
based in theory rather than experiment
(particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all the string theories belong
a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena
a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
a belief that can guide behavior
