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Pronunciation varies by accent · noun
(paleontology) Any prehistoric shark of the family Xenacanthidae..
Use xenacanthid when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Xenacanthid means (paleontology) Any prehistoric shark of the family Xenacanthidae..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use xenacanthid where its definition matches the intended context.
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