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Pronunciation varies by accent · noun
(biochemistry) A polypeptide (or fragment) containing only phenylalanine.
Use polyphenylalanine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polyphenylalanine means (biochemistry) A polypeptide (or fragment) containing only phenylalanine.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use polyphenylalanine where its definition matches the intended context.
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