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| al·pha-fe·to·pro·tein |
noun |
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| Definition: |
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1. fetal protein: a protein in the liver of a human fetus, the presence of which in very high or low quantities in the amniotic fluid may indicate spina bifida or Down syndrome
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2. blood protein: a blood protein produced in the liver, yolk sac, and gastrointestinal tract of a fetus and used as an indicator of cancer and other diseases in adults
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