cryoglobulin
noun
cryo·glob·u·lin
| \ ˌkrī-ō-ˈgläb-yə-lən
\
\
Medical Definition of cryoglobulin
: any of several proteins similar to gamma globulins (as in molecular weight) that precipitate usually in the cold from blood serum especially in pathological conditions (as multiple myeloma) and that redissolve on warming