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epsilon: Meaning and Definition of

ep•si•lon

Pronunciation: (ep'su-lon", -lun or, esp. Brit., ep-sī'lun), [key]
— n.
  1. the fifth letter of the Greek alphabet (E, &egr;).
  2. the consonant sound represented by this letter.
  3. an arbitrarily small quantity, used to indicate that a given quantity is small, or close to zero.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
EPS epsilon-delta
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