Definition of pennatulacean in English:

pennatulacean

adjective

Zoology
  • Of or relating to the order Pennatulacea of alcyonarian coelenterates, which have an elongated primary polyp anchored in sand or mud and usually bear secondary polyps on lateral branches.

noun

Zoology
  • A coelenterate of this order; a sea pen.

Origin

Late 19th century; earliest use found in The Century Dictionary. From scientific Latin Pennatulacea, order name (A. E. Verrill 1865, in Proc. Essex Inst 4 149; from Pennatula, genus name + -acea) + -an.

Pronunciation

pennatulacean

/ˌpɛnɪtʃʊˈleɪʃn//ˌpɛnɪtjʊˈleɪʃn/