hydrophyllium

noun
hy·​dro·​phyl·​li·​um
plural hydrophyllia\ -​ēə \

Definition of hydrophyllium

: one of the leaflike organs regarded as greatly modified zooids that cover other zooids of many siphonophores

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History and Etymology for hydrophyllium

New Latin, from hydr- + -phyllium (from Greek phyllion small leaf, diminutive of phyllon leaf) (to blossom)

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