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Noun: perigonium (perigonia)  ,pe-ru'gow-nee-um
  1. Collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
    - perianth, chlamys, floral envelope, perigone

Derived forms: perigonia

Type of: cover, covering, natural covering, plant organ

Part of: bloom, blossom, flower