MH -abbr

  1. medal of honor
  2. mental health

MHC -abbr

  1. major histocompatibility complex

MHD -abbr

  1. magnetohydrodynamic; magnetohydrodynamics

mho ['mō] -n

  1. a unit of conductance equal to the reciprocal of the ohm : siemens

MHW -abbr

  1. mean high water

MHz -abbr

  1. megahertz