plural of EIN

(US, taxation) Initialism of Employer Identification Number.

(Polari) London

(chemistry) Used in a compound distinguished from a compound with a name ending in -in or -ine.

(chemistry) Alternative form of -ein.

A transuranic chemical element (symbol Es) with atomic number 99: a soft, silvery, paramagnetic metal.

(physics) A gaseous superfluid phase of matter in which all the particles have the same quantum state.

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