oncosphere

noun
on·​co·​sphere
variants: also onchosphere \ ˈäŋ-​kō-​ˌsfi(ə)r How to pronounce onchosphere (audio) \

Medical Definition of oncosphere

: a tapeworm embryo that has six hooks and is the earliest differentiated stage of a cyclophyllidean tapeworm

called also hexacanth embryo

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to move with exaggerated bouncy motions

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