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Meaning of cyathium

cy•ath•i•um

Pronunciation: (sī-ath'ē-um), [key]
— pl. -ath•i•a
  1. an inflorescence consisting of a cup-shaped involucre enclosing an apetalous, pistillate flower surrounded by several staminate flowers.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.