major histocompatibility complex

noun Immunology.

1. MHC.

noun

1. the full name for MHC

n.

1. A chromosomal segment that codes for cell-surface histocompatibility antigens and is the principal determinant of tissue type and transplant compatibility.HLA complex

1. A group of genes that code for cell-surface histocompatibility antigens and are the principal determinants of tissue type and transplant compatibility. They are the most diverse genes in humans and are used to determine if a sample of DNA comes from a specific person.