zetas

zeta

[zey-tuh, zee-]
noun
1.
the sixth letter of the greek alphabet (Z, ζ).
2.
the consonant sound represented by this letter.

Origin:
1820–30; < Greek zêta

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World English Dictionary
zeta (ˈziːtə)
 
n
the sixth letter in the Greek alphabet (Ζ, ζ), a consonant, transliterated as z
 
[from Greek, of Semitic origin; compare Hebrew sādhē]

Zeta (ˈziːtə)
 
n
(foll by the genitive case of a specified constellation) the sixth brightest star in a constellation: Zeta Tauri

ZETA (ˈziːtə)
 
n
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)]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

zeta
Gk. letter, see zed.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

zeta ze·ta (zā'tə, zē'-)
n.

Symbol ζ The sixth letter of the greek alphabet.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Abbreviations & Acronyms
ZETA
zero energy thermonuclear assembly
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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