Any of the cell-surface glycoproteins that are encoded by genes of the major histocompatibility complex and that are involved in the regulation of immune responses.
Origin
1970s.
Definition of MHC molecule in US English:
MHC molecule
noun
Immunology
Any of the cell-surface glycoproteins that are encoded by genes of the major histocompatibility complex and that are involved in the regulation of immune responses.