Pronunciation: ˌ ā ch-( ˌ )el- ' ā
Function: noun
Etymology: h uman l eukocyte a ntigen
Date: 1968
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