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(), n.; pl. L. Pennatul (), E. Pennatulas (). [NL., fr. L. penna a feather.] (Zol.) Any one of numerous species of Pennatula, Pteroides, and allied genera of Alcyonaria, having a featherlike form; a sea-pen. The zooids are situated along one edge of the side branches. スポンサード リンク
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