Definitions for "relativity"
One of two theories (also called theory of relativity) proposed by Albert Einstein, the special theory of relativity, or the general theory of relativity. The special theory of relativity or special relativity is based on the proposition that the speed of light is a constant no matter how observed, and is independent of the motion of the observer. From this follows several principles, such as the increase of mass with velocity (which has been confirmed: see relativistic mass equation) and the impossibility of acceleration to a speed greater than that of light; the equivalence of mass and energy, expressed by the famous equation E = mc2; and time dilation, which is the apparent slowing of a clock in a system, as observed by an observer in a system moving relative to the clock. The general theory of relativity is based on the proposition that there is no physical difference between gravitational force and the force produced by acceleration. From this follow several results, of which the bending of light rays in a gravitational field and the equivalence of the inertial and gravitational masses have been verified. The possible existence of black holes (believed by many astronomers to have been adequately proven) is another consequence of the theory.
See Relativity, theory of; and Relativity physics
the doctrine that measurements and perceptions are true only in relation to a given observer at a given place and time.
Relativity” is an episode of Star Trek: Voyager, the 24th episode of the fifth season.
Relativity was an American drama television series which followed a twenty-something couple, Isabel Lukens (played by Kimberly Williams) and Leo Roth (played by David Conrad), and the lives and loves of their friends and siblings. The short-lived ABC series was the product of thirtysomething producers Edward Zwick and Marshall Herskovitz (who also produced Once and Again and My So-Called Life, two other critically acclaimed shows.) The series ran from 1996-1997; despite critical acclaim and strong fan support, it was canceled after 17 episodes due to low ratings.
"Relativity" is an episode from the third season of the American television series Farscape, written by series creator Rockne S. O'Bannon and directed by Peter Andrikidis.
Relativity is a famous lithograph print by the Dutch artist M. C. Escher which was first printed in December, 1953.
Keywords:  subject
The state of being relative; as, the relativity of a subject.