Translingual

Proper noun

Abranchia

1. (zoology) Animals without gills.
   1. (obsolete) All of those vertebrates that never have gills in their development.
   2. (dated) A taxonomic order within the phylum Gastropoda – somewhat similar to the order Nudibranchia..
   3. (obsolete) A taxonomic order within the phylum Annelida – annelids that lacked specialized respiratory systems, the Oligochaeta, including earthworms.