: a cell formed by the union of two gametes
broadly : the developing individual produced from such a cell

Examples of zygote in a Sentence

Recent Examples on the Web
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The researchers imaged them once a minute, much faster than scientists ever had before, starting at the stage just before the zygotes would normally adhere to the womb wall. — Clare Watson, Quanta Magazine, 27 Feb. 2026 Bear in mind that all the impressions tallied that year were captured within the confines of the Nielsen panelists’ households, as out-of-home measurement was still in its zygote phase. — Anthony Crupi, Sportico.com, 8 Jan. 2026 The zygote splits into two parts after conception, resulting in the development of two individual embryos. — Pamela Prindle Fierro, Parents, 1 July 2024 The genetic instructions that drive the transformation of a single zygote into a living body are strikingly similar in our two species. — Corinne Purtill, Los Angeles Times, 29 May 2024 See All Example Sentences for zygote

Word History

Etymology

Greek zygōtos yoked, from zygoun to join — more at zygoma

First Known Use

circa 1887, in the meaning defined above

Time Traveler
The first known use of zygote was circa 1887

Cite this Entry

“Zygote.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zygote. Accessed 28 Sep. 2026.

Kids Definition

: a cell formed by the union of two sex cells
also : the developing individual produced from such a cell

Medical Definition

: a cell formed by the union of two gametes
broadly : the developing individual produced from such a cell

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