a serum produced during pregnancy, useful in the prenatal diagnosis of multiple births or birth defects.
a protein that forms in the liver of the human fetus. Excessive quantities in the amniotic fluid and maternal blood may indicate spina bifida in the fetus; low levels may point to Down’s syndrome afp
An antigen produced in the fetal liver that can appear in certain diseases of adults, such as liver cancer, and whose level in amniotic fluid can be used to detect certain fetal abnormalities, including Down syndrome and spina bifida.
An antigen produced in the liver of a fetus that can appear in certain diseases of adults, such as liver cancer. Its level in amniotic fluid can be used in the detection of certain fetal abnormalities, including Down syndrome and spina bifida.
- Alpha fiber
alpha fiber alpha fiber n. Any of the large somatic motor or proprioceptive nerve fibers conducting impulses at rates near 100 meters per second.
- Alpha geek
noun (slang) the person in a group or office who has the most knowledge about computer technology job The head geek or geek’s geek. When no one else knows the answer, or several techno-types give conflicting advise, or the error message says “consult your administrator” and you *are* the administrator, you ask the Alpha Geek. […]
- Alpha globulin
a blood plasma protein that is separable from other globulins by electrophoresis. alpha globulin n. A type of globulin in blood plasma that exhibits great colloidal mobility in electrically charged neutral or alkaline solutions.
- Alpha girl
noun the dominant or primary girl within a group, esp. one who bullies; also called alpha female Examples alpha girls in middle school Word Origin 1994 Usage Note slang