hydractinian
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Hydractinian — Hy drac*tin i*an, n. [See {Hydra}, and {Actinia}.] (Zo[ o]l.) Any species or marine hydroids, of the genus {Hydractinia} and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on… … The Collaborative International Dictionary of English
hydractinian — hy·drac·tin·i·an … English syllables
hydractinian — adjective or noun see hydractinia … Useful english dictionary
