Last modified on 7 February 2015, at 03:16




New Latin, from a- + branchia (gill).

Proper nounEdit


  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 clade Nudibranchia.
    3. (obsolete) A taxonomic order within the phylum Annelida — annelids that lacked specialized respiratory systems, the Oligochaeta, including earthworms.

External linksEdit

  • Abranchia in The Century Dictionary, The Century Co., New York, 1911