perigonium

Từ điển WordNet v3.1 - WordNet Dictionary

noun

collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
• Syn:
perianth, chlamys, floral envelope, perigone
• Derivationally related forms:
chlamydeous (for: chlamys)
• Hypernyms:
plant organ, covering, natural covering, cover
• Hyponyms:
falls
• Part Holonyms:
flower, bloom, blossom
• Part Meronyms:
corolla, calyx