1
: the major histocompatibility complex in humans
2
: a genetic locus, gene, or antigen of HLA
—often used with one or more letters to designate a locus or with letters and a number to designate an allele at the locus or the antigen corresponding to the locus and allele
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Merriam-Webster unabridged
Share