MH

MH

1. (metrology) Symbol for megahenry, an SI unit of electrical inductance equal to 10⁶ henrys.

MH

1. (international standards) ISO 3166-1 alpha-2 country code for the Marshall Islands since 1986.

   Synonym: MHL (alpha-3)

MH

1. Abbreviation of Maharashtra, a state in India.

MH (countable and uncountable, plural MHs)

1. Initialism of mental health.
2. Abbreviation of methylhydrazine.

(methylhydrazine):

• DMH (dimethylhydrazine)
• UDMH (unsymmetric dimethylhydrazine)
• SDMH (symmetric dimethylhydrazine)
• MMH (monomethylhydrazine)
• TMH (trimethylhydrazine)

MH

1. (philately) Initialism of mint, hinged.
   • 1995 February 12, R L Silverman, “For Sale: Portugal/Colonies "Ceres" 1912-1931”, in rec.collecting.stamps‎^[1] (Usenet):

     Loose mixed lot, with duplication, of the Portugal & Colonies first decimal definitive designs. Very mixed condition, from VF to junk, all "mint" in some form or another, some MNH, some MH, some MHH, some MNG, etc.

• HM, h'm, hm

MH

1. Abbreviation of Mehedinți, a county in Romania.