einstein

Named in honor of Albert Einstein, who explained the photoelectric effect.

einstein (plural einsteins)

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

   Synonyms: see Thesaurus:intelligent person

• (one mole of photons): microeinstein

From German ein Stein, "one stone", coined by scientists in recent decades, but probably not without tongue-in-cheek tacit acknowledgment of the homonymy with einstein and Einstein.

einstein (plural einsteins)

1. (mathematics, physics) A shape that can be repeated to cover a plane with a nonrepeating pattern.
   • 2023 March 28, Siobhan Roberts, “Elusive ‘Einstein’ Solves a Longstanding Math Problem. And it all began with a hobbyist “messing about and experimenting with shapes””, in New York Times‎, number 2023-03-28, retrieved 2023-03-28:

     In less poetic terms, an einstein is an “aperiodic monotile,” a shape that tiles a plane, or an infinite two-dimensional flat surface, but only in a nonrepeating pattern. (The term “einstein” comes from the German “ein stein,” or “one stone” — more loosely, “one tile” or “one shape.”)

• aperiodic, monotiling, tessellation

• Nineties, nineties

Named after German physicist Albert Einstein.

• IPA^(key): /ˈajn.ʂtajn/

• Audio

  (file)

• Rhymes: -ajnʂtajn
• Syllabification: ein‧stein
• Homophones: ajnsztajn, Einstein

einstein m inan

1. (physics) Alternative spelling of ajnsztajn.
2. einsteinium (element with atomic number 99)

einstein m pers

1. (colloquial, sometimes sarcastic) Einstein, einstein (extremely clever or intelligent person)

• einstein in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
• einstein in Polish dictionaries at PWN