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Definition of Hydrophyllium
1. n. One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora.
Medical Definition of Hydrophyllium
1.
Origin: NL, fr. Gr. "ydwr water + a leaf.
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1. n. One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora.
1.
Origin: NL, fr. Gr. "ydwr water + a leaf.