an alloy of copper and tin that can be worked

the brightest star in the Southern Cross

radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle

radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle

an abnormally large amount of this fetoprotein in the fetus can signal an abnormality of the neural tube (as spina bifida or anencephaly)

an abnormally large amount of this fetoprotein in the fetus can signal an abnormality of the neural tube (as spina bifida or anencephaly)

an abnormally large amount of this fetoprotein in the fetus can signal an abnormality of the neural tube (as spina bifida or anencephaly)

an abnormally large amount of this fetoprotein in the fetus can signal an abnormality of the neural tube (as spina bifida or anencephaly)

a globulin in blood plasma or serum that is alkaline and has great electrophoretic mobility

a magnetic allotrope of iron; stable below 906 degrees centigrade