acaudal
adj. C2 Proficiency acau·dal
adj. having no tail. You use this to describe animals or parts of animals that have lost their tail.
adj. lacking a tail or having a tail that has been removed or lost. Often used in biological contexts to describe specific anatomical features or evolutionary traits.
The acaudal fish swims differently than its relatives.
The scientist noted that the acaudal specimen was likely a result of a genetic mutation during the early stages of development.
In some evolutionary lineages, the transition from a caudal to an acaudal form represents a significant shift in locomotion and environmental adaptation.