Definition of epsilon in English:

epsilon

Syllabification: ep·si·lon
Pronunciation: /ˈepsiˌlän
 
/

noun

1The fifth letter of the Greek alphabet (Ε, ε), transliterated as ‘e.’.
1.1 [as modifier] Denoting the fifth in a series of items, categories, etc.
1.2 (Epsilon) [followed by Latin genitive] Astronomy The fifth star in a constellation: Epsilon Carinae
More example sentences
  • The most likely destinations are the stars closest to Earth, such as Alpha Centauri and Proxima Centauri, Tau Ceti, and Epsilon Eridani.
  • The star Epsilon Eridani, 10 light years from Earth, was then found to have exactly the disc clumps predicted by the computer models.
  • The University of Texas team found a planet similar in size to Jupiter about 10.5 light years away from Earth orbiting the star Epsilon Eridani, a star very similar to the sun.

symbol

(ε) Back to top  

Origin

early 18th century: Greek, 'plain or simple E', from psilos 'plain', referring to the need to distinguish epsilon from the diphthong ai: in late Greek the two had the same pronunciation.

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