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Pronunciation varies by accent · noun
Any extinct fish in the family Psammosteidae, which lived in the Devonian..
Use psammosteid when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Psammosteid means Any extinct fish in the family Psammosteidae, which lived in the Devonian..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use psammosteid where its definition matches the intended context.
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