- Hydrophylliums
- Hydrophyllium Hy`dro*phyl"li*um, n.; pl. L. {Hydrophyllia}, E. {Hydrophylliums}. [NL., fr. Gr. "y`dwr water + ? a leaf.] (Zo["o]l.) One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora. [1913 Webster]
The Collaborative International Dictionary of English. 2000.