alpha granule n.
A granule of an alpha cell.
- Alpha helix
the rodlike spatial configuration of many protein molecules in which the polypeptide backbone is stabilized by hydrogen bonds between amino acids in successive helical turns. noun (biochem) a helical conformation of a polypeptide chain, found abundantly in the structure of proteins alpha helix n. The helical form, turned in a right-handed direction, of many proteins. […]
- Alpha iron
the magnetic allotrope of iron, stable below 910°C and having a body-centered cubic space lattice. noun a magnetic allotrope of iron that is stable below 910°C; ferrite
- Alpha-ketoglutaric acid
a dibasic keto acid, C 5 H 6 O 5 , that occurs as an intermediate in the Krebs’ cycle and in protein metabolism.