abranchious

Thân thiện

An abranchious worm burrows through the moist soil.

Definition

Adjective: * Having no gills: Describes an animal that does not possess gills, the respiratory organs used by many aquatic animals to extract oxygen from water.

Usage and Examples

• Adjective:
  • Whales and dolphins are abranchious mammals; they breathe air through lungs, not water through gills.
  • The study focused on the respiratory systems of abranchious amphibians that develop lungs early in their life cycle.

Advanced Usage

• The term is primarily used in specialized scientific contexts, particularly in zoology, marine biology, and comparative anatomy.
• It is often used in contrast to "branchiate" (having gills) to classify animals based on their respiratory structures.
  • The phylogenetic tree clearly separates branchiate fish from abranchious tetrapods.

Variants and Related Words

• Abranchiate (adjective): A direct synonym, also meaning "having no gills."
• Branchiate (adjective): The direct antonym, meaning "provided with gills."

Synonyms

• Gill-less
• Abranchiate

Antonyms

• Branchiate
• Gill-bearing

Học thuật

Adjective

1. having no gills

Từ đồng nghĩa

• abranchiate
• abranchial
• gill-less