What does MDD stand for?

Chad Myers Custom Boats, Inverness, FL - Manufacturer code for watercraft hull identification number (USCG)

Doctor of Dental Medicine

Machine Dependent Data (OA)

Madrid - Spain - Seismograph station code, US Geological Survey - Closed (SEIS)

Magnetic Disk Drive

Maintenance Design Disclosure

Maintenance Due Date (NVT)

Major Depressive Disorder - Psychiatry

Male Development Disorder (MELL)

Management Division Director (SAUO)

Manic-Depressive Disorder - Medicine (STED)

Marijuana Detection Dog (DNAB)

Marshals of Dynamic Discord

Mate/Demate Device - Aerospace (NAKS)

Maximum Daily Dose (SAUO)

Mbum - Language code (ETLW)

McDonald & Co. Invest - NYSE symbol

McDonald & Co. Investments, Inc. - NYSE symbol (SPSG)

Mean Daily Difference - Medicine

Mean Daily Dose

Median Droplet Diameter

Medical Device Directive (SAUO)

Medical Device Directorate (SAUO)

Meta-Data Device - A computer log (XSAL)

Meteorological Data Distribution

Midland, TX - Location identifier - FAA (FAAL)

Milligrams per Square Decimeter per Day

Million-Dollar Deal

Million Dollar Directory - Dun's Marketing Services - Parsippany, NJ - Database

Mineral Deposits Division, Geological Association of Canada (SAUO)

MiniDisc Deck (TLAA)

Mission Data Display

Mission Dependent Data (XSAL)

Mission Description Document (SSD)

Mixed Depressive Disorder - Medicine (EDAA)

Modern Drug Discovery - Database (GDD)

Mouvement Democratique Dahomeen - Dahomean Democratic Movement - Political party

Multichannel Demultiplexer and Distributor

Multidimensional Database

Multiple Disk Drive - Computer science (VLIE)

Puerto Maldonado - Peru - Airport symbol (AD)