1. Proteins produced by the fetus during pregnancy, especially alpha-fetoprotein (AFP), used as biomarkers in prenatal screening and cancer diagnosis.
Usage: medical/scientific term; typically used in plural form; commonly abbreviated as AFP in clinical contexts

Examples

• Elevated fetoproteins in maternal blood can indicate potential chromosomal abnormalities.
• The doctor ordered a test to measure fetoproteins as part of the prenatal screening panel.
• Fetoproteins are sometimes elevated in patients with liver cancer or germ cell tumors.
• The presence of fetoproteins in adult serum is typically abnormal and warrants further investigation.
• Fetoproteins serve as important tumor markers in oncology.