ectocyst

noun

ec·​to·​cyst ˈek-tə-ˌsist How to pronounce ectocyst (audio)
: the external layer of a hydatid cyst

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“Ectocyst.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ectocyst. Accessed 20 Mar. 2025.

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