endosperm nucleus

noun

plural endosperm nuclei
: the triploid nucleus that is formed in the embryo sac of a flowering plant during double fertilization by fusion of a sperm cell with two polar nuclei and that gives rise to the nutritive endosperm

Word History

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of endosperm nucleus was in 1885

Dictionary Entries Near endosperm nucleus

Cite this Entry

“Endosperm nucleus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endosperm%20nucleus. Accessed 22 Dec. 2024.

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