What does HMD stand for?

Charlie Hammonds Flying Service, Inc. - FAA designator (FAAC)

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

Hammond Corp. (SAUO)

Hammond, LA - Amtrak rail station code

Hand-held Metal Detector - Police and security equipment

Hand-held Mine Detector - Police and security equipment

Head/Helmet Mounted Display (SAUS)

Head-Mounted Display - Virtual reality technology

Heard Island and McDonald Islands - ANSI three-letter standard code (CNC)

Helicopter Mine Dispenser (SAUS)

Helmet-Mounted Display

Hemmed (SAUS)

Heterodyne Matrix Detector

High-Mobility Demonstrator - Military vehicles

His - or Her Majesty's Destroyer - British military (DMA)

His - or Her Majesty's Dockyard - Navy - British

His - or Her Majesty's Drifter

History of Medicine Division (SAUO)

HLM Design - AMEX symbol (SPSG)

Hollow-Metal Door (DAC)

Homeopathic Doctor of Medicine (SAUO)

Homeopathic Medical Doctor - Medicine

Hot Metal Detector - Electronics (IAA)

Hot-Mix Design (SAUS)

Hughes Maintenance Depot (ACAE)

Hughes Microprogrammable Display (ACAE)

Hugh McGinnis - NCIC boat manufacturer code (NCIC)

Humid (MSA)

Humidity (SAUS)

Hyaline Membrane Disease - Later, RDS - Medicine

Hydraulic Mean Depth

HydrazinomethylDOPA - Biochemistry

Hydrostatic Motor-Driven

McGinnis Boats, Agnes, OR - Manufacturer code for watercraft hull identification number (USCG)

Northeastern Dian Hmong - Language code (ETLW)