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Pronunciation varies by accent · noun
(zoology) Any of a group of extinct placoderms of the order Antiarchi.
Use antiarch when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Antiarch means (zoology) Any of a group of extinct placoderms of the order Antiarchi.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use antiarch where its definition matches the intended context.
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