the fifth letter of the Greek alphabet (E, ε).
the consonant sound represented by this letter.
Mathematics. an arbitrarily small quantity, used to indicate that a given quantity is small, or close to zero.
First recorded in 1400–50; from Greek e psīlón “bare, simple e ” (as opposed to diphthongal spellings which in later Greek represented the same sound)
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
For the three stars with detected astrospheres, named 70 Ophiuchi, epsilon Eridani, and 61 Cygni, the researchers estimated their mass loss rates to be 66.5±11.1, 15.6±4.4, and 9.6±4.1 times the solar mass loss rate, respectively.
From Science Daily • Apr. 12, 2024
Considering reidentification risk—and associated costs—alongside accuracy could help in more holistically assessing epsilon.
From Slate • Aug. 12, 2021
A few others made the rogue’s gallery of variants: gamma, beta, epsilon.
From Washington Post • Aug. 8, 2021
Another delta mutation — also found in kappa and epsilon — is called L452R.
From Salon • Jul. 29, 2021
There were five city quarters, designated by the Greek letters alpha through epsilon.
From "Circumference" by Nicholas Nicastro
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
