Belemnoidea

from WordNet (r) 3.0 (2006)

Belemnoidea
    n 1: order of extinct dibranchiate cephalopods related to the
         surviving spirulas [syn: {Belemnoidea}, {order
         Belemnoidea}]

from The Collaborative International Dictionary of English v.0.48

Belemnoidea \Belemnoidea\ n.
   an order of extinct dibranchiate cephalopods related to the
   surviving spirulas.

   Syn: order {Belemnoidea}.
        [WordNet 1.5]

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