epistome
noun
ep·i·stome
ˈe-pə-ˌstōm 
: any of several structures or regions situated above or covering the mouth of various invertebrates
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“Epistome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epistome. Accessed 17 Dec. 2024.
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