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myxotheca

noun
myx·​o·​the·​ca | \ ˌmiksəˈthēkə\
plural myxothecae\ -​ē(ˌ)sē \

Definition of myxotheca

: the horny sheath of the end of a bird's lower mandible

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History and Etymology for myxotheca

New Latin, from myx- + -theca

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