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Meaning of obelia

o•be•lia

Pronunciation: (ō-bēl'yu, ō-bē'lē-u), [key]
— n.
  1. a colonial hydroid of the genus Obelia, common in temperate seas and appearing as a delicate, mosslike growth on rocks, pilings, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.