hl -abbr

  1. hectoliter

HL -abbr

  1. House of Lords

HLA [,āch-(,)el-'ā] -n

  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

HLS -abbr

  1. laid in this place