英和和英

語源

From Ancient Greek ἒ ψιλόν (è psilón, “simple Ε”).

発音

• (Received Pronunciation) IPA: /ɛpˈsaɪ.lən/, /ˈɛp.sɪˌlɒn/
• (General American, Canada) IPA: /ˈɛp.sɪˌlɑn/, /ˈɛp.sɪ.lən/
• (General Australian) IPA: /epˈsɑɪ.lən/, /ˈep.sɪ.lɔn/, /ˈeps.lən/
• ハイフネーション: ep‧si‧lon

名詞

epsilon (countable and uncountable, plural epsilons or epsila)

1. The fifth letter of the Greek alphabet, ε or Ε, preceded by delta (Δ, δ) and followed by zeta (Ζ, ζ).
2. (phonetics) In IPA, the phonetic symbol ɛ that represents the open-mid front unrounded vowel.
3. (mathematics) An arbitrarily small quantity.
   1. (Can we verify this sense?) (colloquial) A small child.
4. (computing, colloquial) Something negligible or insignificant.

   Yes, we have to convert all the symbol names to upper case at startup, but that’s epsilon.

   • 2017, Dean Koontz, The Silent Corner, page 106:

     All right, okay. My interest is epsilon.

5. (finance) The percentage change in an option value with respect to the underlying dividend yield.

上位語

• (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)

派生語

参考

• (Greek-script letter names) alpha, beta, gamma, delta, epsilon, zeta, eta, theta, iota, kappa, lambda, mu, nu, xi, omicron, pi, rho, sigma, tau, upsilon, phi, chi, psi, omega
• infinitesimal

参照

アナグラム

• pinoles, pile-ons, inslope, sinople, pilones, pile ons, piles on, pleions