yolk plug

noun

Medical Definition of yolk plug

: a mass of yolk cells found in the blastopore of the embryos of some vertebrates

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Dictionary Entries Near yolk plug

yolk

yolk plug

yolk sac

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Cite this Entry

“Yolk plug.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/yolk%20plug. Accessed 28 Oct. 2021.

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