amastia

noun

amas·​tia (ˈ)ā-ˈmas-tē-ə How to pronounce amastia (audio)
: the absence or underdevelopment of the mammary glands

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“Amastia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/amastia. Accessed 17 Dec. 2024.

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