MH -abbr
- medal of honor
- mental health
MHC -abbr
- major histocompatibility complex
MHD -abbr
- magnetohydrodynamic; magnetohydrodynamics
mho ['mō] -n
- a unit of conductance equal to the reciprocal of the ohm : siemens
MHW -abbr
- mean high water
MHz -abbr
- megahertz