What does HMM stand for?

Central Mashan Hmong - Language code (ETLW)

Hamamatsu - Japan - Seismograph station code, US Geological Survey (SEIS)

Hamilton, MT - Location identifier - FAA (FAAL)

Hammond Manufacturing Co. Ltd. - Toronto Stock Exchange symbol

Hard Magnetic Material (SAUS)

Hardware Multiply Module

Heavy Meromyosin - Biochemistry

Helicopter Medium Squadron - Military (DOMA)

Hexamethoxy(methyl)melamine

Hexamethylmelamine - Altretamine - Also, HEX, HXM - Antineoplastic drug

Hidden Markov Modeling - Computer science

His (or Her) Majestys Minister (SAUS)

Hondo Manufacturing, Hondo, TX - Manufacturer code for watercraft hull identification number (USCG)

Horizon Mission Methodology - NASA

Houser Martin Morris - Commercial firm

Hyundai Merchant Marine (SAUS)

Marine Helicopter Squadron Medium