prealbumin
/ˌpriːˈalbjʊmɪn/Biochemistry
noun
Any plasma protein with an electrophoretic mobility which (in some techniques of electrophoresis) is slightly greater than that of albumin; specifically a tetramer in human blood which binds thyroxine and the retinol-binding protein.
Origin
1950s; earliest use found in Science. From pre- + albumin.