noun peri·go·ni·um \ˌperəˈgōnēəm\

Definition of perigonium



  1. 1 :  a perianth especially of a liverwort — compare perichaetium

  2. 2 :  a sac surrounding the generative bodies in the gonophore of a hydroid

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Origin and Etymology of perigonium

New Latin, from peri- + gon- + -ium

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