heterocercal
- adjective
- /ˌhɛtərəˈsɜrkəl/
- Specialized
:
heterocercal
- Sharks are known for their heterocercal tails, where the upper lobe is larger than the lower one.
Examples
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The prehistoric fish had a distinctly heterocercal tail, unlike most modern species.
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Sharks are known for their heterocercal caudal fins, which aid in powerful swimming.
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Paleontologists studied the structure of the heterocercal tail to understand the fish's movement.
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The shark has a heterocercal tail that helps it swim faster.
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Many species of fish, such as the sturgeon, feature a heterocercal tail.
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The heterocercal tail of the ancient fish helped scientists understand its swimming mechanics.
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Many species of fish, including some sharks, have a heterocercal tail that aids in propulsion.
Synonyms
A tail fin with a larger top than bottom and the backbone entering the top, like sharks
Antonyms
- Specialized
With a tail whose upper and lower lobes are the same and extend past the backbone, like most bony fish
Compounds
- Specialized
A tail fin with a larger top than bottom and the backbone entering the top, like sharks
How Symmetrical
- Specialized
- Specialized
Surface Forms
Morphology
heterocercal = cercal (semi-transparent) = hetero + cerc + al
Formally analyzable as hetero- + cercal, but both elements are technical Greek-derived combining forms and the precise anatomical meaning is specialized.
Etymology
The word heterocercal comes from Greek parts hetero- ('different') and cercal (from an old Greek word for 'tail'), and you can see hetero- in words like heterogeneous or heterosexual. So it literally means a 'different tail' and describes a fish tail where the upper part is bigger than the lower and the spine goes into the upper part.
