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Pronunciation varies by accent · noun
Any extinct maniraptoran dinosaur of the superfamily Alvarezsauroidea.
Use alvarezsaurian when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Alvarezsaurian means Any extinct maniraptoran dinosaur of the superfamily Alvarezsauroidea.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use alvarezsaurian where its definition matches the intended context.
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