Definition of alcyonarian in English:

alcyonarian

adjective

  • Belonging to the Alcyonaria, a group of anthozoan cnidarians comprising the soft corals, having polyps with eight pinnate tentacles; of or relating to this group.

noun

Origin

Mid 19th century; earliest use found in Thomas Rymer Jones (1810–1880), morphologist and physiologist. From scientific Latin Alcyonaria, group name + -an.

Pronunciation

alcyonarian

/ˌalsɪəˈnɛːrɪən/