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entypy

noun

en·​ty·​py ˈent-ə-pē How to pronounce entypy (audio)
plural entypies
: a method of amnion formation in certain mammals in which the inner cell mass invaginates into the yolk sac and no amniotic folds are formed

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“Entypy.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/entypy. Accessed 29 Nov. 2025.

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