'relativity' definitions:
Definition of 'relativity'
From: WordNet
noun
(physics) the theory that space and time are relative concepts rather than absolute concepts [syn: relativity, theory of relativity, relativity theory, Einstein's theory of relativity]
noun
The quality of being relative and having significance only in relation to something else
Definition of 'relativity'
From: GCIDE
- relativity \rel`a*tiv"i*ty\ (-t?v"?-t?), n.
- 1. The state of being relative; as, the relativity of a subject. --Coleridge. [1913 Webster]
- 2. 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 = mc^2; 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. [PJC]
Synonyms of 'relativity'
From: Moby Thesaurus
- balance,
- coequality,
- communion,
- community,
- contingency,
- continuum theory,
- corelation,
- correlation,
- correlativism,
- correlativity,
- correspondence,
- cosmic constant,
- dependence,
- Einstein theory,
- equilibrium,
- equipollence,
- equivalence,
- four-dimensional geometry,
- four-dimensional space,
- fourth dimension,
- interrelation,
- inverse proportion,
- inverse ratio,
- inverse relationship,
- mutuality,
- other continuums,
- principle of equivalence,
- principle of relativity,
- proportionality,
- reciprocality,
- reciprocation,
- reciprocity,
- space-time,
- space-time continuum,
- symmetry,
- theory of relativity,
- time-space
Words containing 'relativity'
- Relate,
- Related,
- Relater,
- Relating,
- Relation,
- Relational,
- Relative,
- Relatively,
- Relativeness,
- Relator,
- in relation to,
- related to,
- relations,
- Blood relation,
- False relation,
- Relative clause,
- Relative term,
- Relative velocity,
- academic relation,
- anaphoric relation,
- blood relative,
- business relation,
- conditional relation,
- fiduciary relation,
- general relativity,
- grammatical relation,
- legal relation,
- linguistic relation,
- logical relation,
- magnitude relation,
- mathematical relation,
- medical relation,
- partner relation,
- personal relation,
- phylogenetic relation,
- political relation,
- principle of relativity,
- professional relation,
- public relations,
- quantitative relation,
- relation back,
- relational adjective,
- relational database,
- relative density,
- relative frequency,
- relative humidity,
- relative incidence,
- relative majority,
- relative pronoun,
- relative quantity,
- relativity theory,
- semantic relation,
- sexual relation,
- social relation,
- spatial relation,
- special relativity,
- temporal relation,
- theory of relativity,
- Relative refractive index,
- To relate one's self,
- age-related,
- blood-related,
- co-relation,
- court of domestic relations,
- domestic relations court,
- einstein's theory of relativity,
- general relativity theory,
- general theory of relativity,
- part to whole relation,
- public relations man,
- public relations person,
- relative atomic mass,
- relative molecular mass,
- relative-in-law,
- safety-related,
- special relativity theory,
- special theory of relativity,
- whole to part relation,
- attorney-client relation,
- bank-depositor relation,
- conservator-ward relation,
- director-stockholder relation,
- doctor-patient relation,
- einstein's general theory of relativity,
- einstein's special theory of relativity,
- executor-heir relation,
- international relations and security network,
- lawyer-client relation,
- mirror-image relation,
- national labor relations board,
- nurse-patient relation,
- public-relations campaign,
- receiver-creditor relation,
- relational database management system,
- teacher-student relation,
- trustee-beneficiary relation,
- age-related macular degeneration,
- confidential adviser-advisee relation