zeta

noun

ze·​ta ˈzā-tə How to pronounce zeta (audio)
ˈzē-
: the 6th letter of the Greek alphabet see Alphabet Table

Examples of zeta in a Sentence

Recent Examples on the Web
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Doing so opened up even more powerful zeta function techniques to understand quantum gravity. Lyndie Chiou, Scientific American, 3 Mar. 2026 The zeta function lives in the complex plane and is tied to oscillating sums/products; small analytical gaps can ruin a proof. John Werner, Forbes.com, 16 Jan. 2026 Stable dispersions lasted for up to a month, supported by strong negative zeta potentials in both water and ethanol. Rupendra Brahambhatt, Interesting Engineering, 20 Dec. 2025 The zeta function has long been known to govern the distribution of prime numbers. Erica Klarreich, Quanta Magazine, 8 Jan. 2025 Mathematicians already know that the nontrivial zeta zeros are confined between 0 and 1. Byzack Savitsky, science.org, 29 July 2024

Word History

Etymology

Greek zēta

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of zeta was in the 15th century

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Cite this Entry

“Zeta.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zeta. Accessed 6 Jul. 2026.

Kids Definition

zeta

noun
ze·​ta ˈzāt-ə How to pronounce zeta (audio)
: the sixth letter of the Greek alphabet
Ζ or ζ
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