lagena

noun
la·​ge·​na
variants: or British lagaena \ lə-​ˈjē-​nə How to pronounce lagaena (audio) \
plural lagenae\ -​nē How to pronounce lagenae (audio) \

Medical Definition of lagena

1 : the upper extremity of the cochlear duct that is attached to the cupula at the upper part of the helicotrema
2 : an organ of vertebrates below the mammals that corresponds to the cochlea

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