einstein

/AY1 N S T AY0 N/
noun
  1. 1

    Albert Einstein, the world-famous 20th-century theoretical physicist who developed the theory of relativity.

  2. 2

    (sometimes sarcastic) An extremely clever or intelligent person.

  3. 3

    A surname from German.

  4. 4

    (informal) A genius; a very smart person.

  5. 5

    (by extension, informal, sarcastic) An idiot; a very stupid person.

  6. 6

    (photochemistry, dated) One mole of photons, regardless of frequency, as used to measure irradiance.

  7. 7

    (mathematics, physics) A shape that can be repeated to cover a plane with a nonrepeating pattern.