noun pe·ro·ni·um \pəˈrōnēəm\

Definition of peronium



  1. :  a tract of modified epithelium between the margin of the umbrella and the base of a tentacle in some Hydromedusae

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Origin and Etymology of peronium

New Latin, from Greek peronion, small pin, diminutive of peronē pin, fibula — more at peroneal

Seen and Heard

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a trip made at another's expense

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