What does GDM stand for?

Gardner (SAUS)

Gardner, MA - Location identifier - FAA (FAAL)

Gary Drake Manufacturing, Nampa, ID - Manufacturer code for watercraft hull identification number (USCG)

Gas Diffusion Media

General Design Memorandum - US Army Corps of Engineers

General Development Map - or Model

General Dynamics Manufacturing (SAUS)

Generalized Development Model (ACAE)

Geodetic Distance Measurement

Geometrically Deformable Model

Geospatial Data Management (SAUO)

Gestational Diabetes Mellitus - Medicine

Ghana Democratic Movement - Political party (EY)

Gibraltar Democratic Movement - Political party (PPE)

Glass Disk Memory (SAUS)

Global Data Manager

GNOME- GNU's Not Unix Network Object Model Display Manager (XSAL)

Goldome - NYSE symbol (COMM)

Good Demand - Telegraphy (PCTE)

Graphic Display Module - National Weather Service

Graphic Display Monitor (SAUS)

Gravitational Dipole Moment (PDAA)

Grenada Democratic Movement - Political party (EAIO)

Grid-Dip Meter (IAA)

Grid-Dip Modulator

Group on Defence Matters (SAUO)

Guidance Design Manager (MCD)

Laal - Language code (ETLW)

Geodynamic Meter (SAUS)