obelia

[oh-beel-yuh, oh-bee-lee-uh]
noun
  1. a colonial hydroid of the genus Obelia, common in temperate seas and appearing as a delicate, mosslike growth on rocks, pilings, etc.

Origin of obelia

1865–70; < New Latin < Greek obelías a loaf toasted on a spit, equivalent to obel(ós) a spit (see obelisk) + -ias noun suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of obelia