Frequency Division Multiplexing Frequency Division Multiplex Finite Difference Method Fused Deposition Modeling Flight Data Manager Force Direction Message Fault Detection and Management Field-Desorption Microscopy Fill and Drain Module Flight Design Manager Frequency Data Multiplexer Frequency Division Multiplexed frequency domain multiplexing Frequency-Division Multiplexing fugitive dust model Functional Development Models Facilities Data Management Facility description manual factorial design method Feature Description Manual fetus of diabetic mother fetuses of diabetic mothers Fiber Distribution Module fibrous dysplasia of the mandible Field-Desorption Microscope File Diagnostic Messages filter diagonalization method Financial Disclosure Management Finite Difference Model finite differentiation method