heterocercal

adjective
het·​ero·​cer·​cal | \ ˌhe-tə-rō-ˈsər-kəl How to pronounce heterocercal (audio) \

Definition of heterocercal

1 of a fish tail fin : having the upper lobe larger than the lower with the vertebral column extending into the upper lobe
2 : having or relating to a heterocercal tail fin

First Known Use of heterocercal

1838, in the meaning defined at sense 1

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The first known use of heterocercal was in 1838

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Cite this Entry

“Heterocercal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heterocercal. Accessed 20 Jan. 2021.

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