MHC

1. major histocompatibility complex: (in mammals) a group of genes located next to or near each other on a specific chromosome, the sixth in humans, most of which encode glycoproteins of highly variable shapes that are expressed on almost all cell surfaces: it plays the dominant role in distinguishing one individual's cells from another's and in determining the histocompatibility of any two individuals.

MHC

abbreviation for

1. major histocompatibility complex; a series of genes located on chromosome 6 that code for antigens. They are important in determining histocompatibility