obelia /ōˈbēlyə, oʊˈbiljə 
/ ▸ noun Zoology a genus of marine animals that bear polyps and produce medusae, and that form colonies that attach to rocks or the ocean bottom. Genus
Obelia, class
Hydrozoa. – ORIGIN modern Latin, from Greek obelos ‘pointed pillar’.
EnglishOxford New American Dictionary
