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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 het·ero·cer·cal /-ˈsɝkəl/
 歪形尾

From: Webster's Revised Unabridged Dictionary (1913)

 Het·er·o·cer·cal a.  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.
 

From: WordNet (r) 2.0

 heterocercal
      adj : possessing a tail with the upper lobe larger than the lower
            and with the vertebral column prolonged into the upper
            lobe [ant: homocercal]