heterocercal

English

Etymology

From hetero- +‎ cercal.

Adjective

heterocercal (comparative more heterocercal, superlative most heterocercal)

  1. (ichthyology) Of a fish's tail, such that the vertebral column bends and extends upwards into the upper lobe of the tail, making it larger than the lower lobe; as in sharks, rays, and skates.

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