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Pronunciation varies by accent · noun
Any extinct cartilaginous fish of the superorder Xenacanthimorpha.
Use xenacanthimorph when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Xenacanthimorph means Any extinct cartilaginous fish of the superorder Xenacanthimorpha.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use xenacanthimorph where its definition matches the intended context.
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