Definition of HLA

: the major histocompatibility complex in humans
: a genetic locus, gene, or antigen of the major histocompatibility complex in humans—often used attributively <HLA antigens> <HLA typing>; 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 <relationship…between HLA-B27 antigen and ankylosing spondylitis—G. E. Ehrlich>

Variants of HLA

HLA also HL–A \ˌā-(ˌ)chel-ˈā\

Origin of HLA

human leukocyte antigen

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