het·​ero·​cer·​cal ˌhe-tə-rō-ˈsər-kəl How to pronounce heterocercal (audio)
of a fish tail fin : having the upper lobe larger than the lower with the vertebral column extending into the upper lobe
: having or relating to a heterocercal tail fin

Word History

First Known Use

1838, in the meaning defined at sense 1

Time Traveler
The first known use of heterocercal was in 1838

Dictionary Entries Near heterocercal

Cite this Entry

“Heterocercal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heterocercal. Accessed 21 Jul. 2024.

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