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Definitions

from The Century Dictionary and Cyclopedia

  • In zoology: Having two lungs, as a spider; specifically, pertaining to or having the characters of the
  • Having two lungs, as a lung-fish; specifically, having the characters of the
  • Having a pair of respiratory organs, as a holothurian; pertaining to such branchiate Holothurioidea.

Etymologies

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