Definition of alcyonarian in English:

alcyonarian

adjective

Zoology
  • 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

Zoology
  • An alcyonarian coral; = octocorallian.

Origin

Mid 19th century; earliest use found in Thomas Rymer Jones (1810–1880), morphologist and physiologist. From scientific Latin Alcyonaria, group name (1830 or earlier; compare French Alcyonaires, plural noun; from alcyon + -aria) + -an.

Pronunciation

alcyonarian

/ˌalsɪəˈnɛːrɪən/