diphycercal

[ dif-uh-sur-kuhl ]

adjectiveIchthyology.
  1. having a tail or caudal fin with the spinal column extending horizontally to the end of the tail, characteristic of lungfish, several other primitive fishes, and the juvenile stage of modern bony fishes.

Origin of diphycercal

1
diphy- double (see diphyodont) + Greek kérk(os) a tail + -al1

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British Dictionary definitions for diphycercal

diphycercal

/ (ˌdɪfɪˈsɜːkəl) /


adjective
  1. ichthyol of or possessing a symmetrical or pointed tail with the vertebral column extending to the tip, as in primitive fishes

Origin of diphycercal

1
C19: from Greek diphuēs twofold (from di 1 + phuē growth) + kerkos tail

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