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单词 pennatulacean
释义

Definition of pennatulacean in English:

pennatulacean

adjective ˌpɛnɪtʃʊˈleɪʃnˌpɛnɪtjʊˈleɪʃn
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 ˌpɛnɪtʃʊˈleɪʃnˌpɛnɪtjʊˈleɪʃn
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.

 
 

Definition of pennatulacean in US 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.

 
 
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更新时间:2024/12/23 23:15:23