heterocercal Meaning, Definition & Usage

  1. adjective possessing a tail with the upper lobe larger than the lower and with the vertebral column prolonged into the upper lobe

WordNet

Het`er*o*cer"cal adjective
Etymology
Hetero- + Gr. tail.
Definitions
  1. (Anat.) Having the vertebral column evidently continued into the upper lobe of the tail, which is usually longer than the lower one, as in sharks.

Webster 1913