: a cell formed by the union of two gametes
broadly
: the developing individual produced from such a cell
Examples of zygote in a Sentence
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And when the researchers injected the RNAs from the sperm of the fat-eating mice into a zygote, some of the male offspring showed metabolic issues associated with a high-fat diet.
—
Ivan Amato, Quanta Magazine, 22 Dec. 2025
The two-cell stage embryo is the very early embryonic stage where the original fertilized egg (zygote) has divided into two distinct cells (blastomeres) that continue to divide.
—New Atlas, 2 Oct. 2025
The zygote matures into an embryo, and the embryo develops into a fetus.7
While human body cells have 46 chromosomes, sperm cells have 23 chromosomes.
—Heather Jones, Verywell Health, 19 Sep. 2024
The zygote splits into two parts after conception, resulting in the development of two individual embryos.
—Pamela Prindle Fierro, Parents, 1 July 2024
See All Example Sentences for zygote
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Ivan Amato, Quanta Magazine, 22 Dec. 2025
The two-cell stage embryo is the very early embryonic stage where the original fertilized egg (zygote) has divided into two distinct cells (blastomeres) that continue to divide.
—New Atlas, 2 Oct. 2025
The zygote matures into an embryo, and the embryo develops into a fetus.7
While human body cells have 46 chromosomes, sperm cells have 23 chromosomes.
—Heather Jones, Verywell Health, 19 Sep. 2024
The zygote splits into two parts after conception, resulting in the development of two individual embryos.
—Pamela Prindle Fierro, Parents, 1 July 2024
See All Example Sentences for zygote
Cite this Entry
“Zygote.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zygote. Accessed 3 Jan. 2026.
Copy CitationKids Definition
zygote
noun
zy·gote
ˈzī-ˌgōt 
: a cell formed by the union of two sex cells
also
: the developing individual produced from such a cell
Medical Definition
zygote
noun
zy·gote
ˈzī-ˌgōt
: a cell formed by the union of two gametes
broadly
: the developing individual produced from such a cell
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