prolabium

noun
pro·​la·​bi·​um | \ prō-ˈlā-bē-əm How to pronounce prolabium (audio) \
plural prolabia\ -​bē-​ə How to pronounce prolabia (audio) \

Medical Definition of prolabium

: the exposed part of a lip especially : the protuberant central part of the upper lip

Comments on prolabium

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one from the Upper Peninsula of Michigan

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