gephyrocercal

adjective

geph·​y·​ro·​cer·​cal

¦jefə(ˌ)rō¦sərkəl

1

: having the dorsal and anal fins confluent at the aborted end of the vertebral column of a fish's tail

2

: having or relating to a gephyrocercal tail

gephyrocercy

ˈ⸗⸗⸗ˌsərsē

noun

plural -es

Word History

Etymology

Greek gephyro- (from gephyra) + English -cercal

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