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Definition of zeta

zeta

/ˈzeɪ.tə/
ze · ta

Plural:zetas
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zeta Lexical Profile

zeta Game Scores & Validity

• noun

1

The sixth letter of the Greek alphabet (Ζ, ζ), transliterated as 'z'.

Example

"In mathematics, the lowercase Greek letter zeta is famously used to represent the Riemann zeta function."


2

The sixth in a series of items, particularly the sixth brightest star in a constellation or a mathematical variable.

Example

"The astronomer pointed the telescope toward Zeta Orionis, one of the three bright stars forming Orion's Belt."

• Rhymes for zeta

Word Origin & Etymology

Borrowed via Latin from Ancient Greek zēta, which was adapted from the Phoenician letter zayin.

Cite this Entry


Wordmom. (2026). Definition of Zeta. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/zeta
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