zeta(redirected from Zetas)
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The sixth letter of the Greek alphabet. See Table at alphabet.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Letters of the Alphabet (Foreign)) the sixth letter in the Greek alphabet (Ζ, ζ), a consonant, transliterated as z
[from Greek, of Semitic origin; compare Hebrew sādhē]
(Astronomy) (foll by the genitive case of a specified constellation) the sixth brightest star in a constellation: Zeta Tauri.
(Nuclear Physics) a torus-shaped apparatus used for research in the 1950s and early 1960s on controlled thermonuclear reactions and plasma physics
[C20: from z(ero-)e(nergy) t(hermonuclear) a(pparatus)]
ze•ta(ˈzeɪ tə, ˈzi-)
n., pl. -tas.
the sixth letter of the Greek alphabet (Ζ, ζ).
[1820–30; < Greek zêta]
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|Noun||1.||zeta - the 6th letter of the Greek alphabet|
Greek alphabet - the alphabet used by ancient Greeks
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