3DP
3D Printing
ABS
Acrylonitrile Butadiene Styrene
AM
Additive Manufacturing
CAD / CAM
Computer-aided design / Computer-aided manufacturing
CAE
Computer-aided engineering
DLP
Digital Light Processing
DMD
Direct Metal Deposition
DMLS
Direct Metal Laser Sintering
EBM
Electron Beam Melting
EVA
Ethylene Vinyl Acetate
FDM
Fused Deposition Modelling (Trademark of Stratasys)
FFF
Freeform Fabrication
LENS
Laser Engineering Net-Shaping (Trademark of SNL, licensed to Optomec)
LS
Laser Sintering
PLA
Polylactic Acid
RE
Reverse Engineering
RM
Rapid Manufacturing
RP
Rapid Prototyping
RT
Rapid Tooling
SL
Stereolithography
SLA
Stereolithography Apparatus (Registered Trademark of 3D Systems)
SLM
Selective Laser Melting
SLS
Selective Laser Sintering (Registered Trademark of 3D Systems)
STL / .stl
Stereo Lithograpic
Source: http://3dprintingindustry.com/