Albert Einstein, the world-famous 20th-century theoretical physicist who developed the theory of relativity. / A surname from German.

(sometimes sarcastic) An extremely clever or intelligent person.

(photochemistry) One mole of photons, regardless of frequency, as used to measure irradiance. / (informal) a genius, a very smart person

plural of einstein

plural of Einstein

Synonym of Einsteinianism

(mathematics) A Riemann space in which the contracted curvature tensor is proportional to the metric tensor

plural of Einstein space

(physics) the coupling constant appearing in the Einstein field equation

The speed of light viewed as an uncrossable barrier to acceleration from subluminal and superluminal speeds in special relativity.