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Pronunciation varies by accent · noun
(biochemistry) A polypeptide that is the prohormone precursor of insulin.
Use proinsulin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Proinsulin means (biochemistry) A polypeptide that is the prohormone precursor of insulin.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use proinsulin where its definition matches the intended context.
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