What does MESS stand for?

Magnetic Emulsion Spectrometer

Mangled Extremity Severity Score - Medicine (MELL)

Master of Exercise and Sport Sciences (PGP)

Maximum Effective SONAR Speed (NVT)

Maximum Efficiency Structural System (IAA)

Mechanical Electronic Subassembly Simulator

Messenger (MSA)

Messerschmitt - German fighter aircraft (DSUE)

Messerschmitt - NCIC car make code

Military Equipment Support Subsystem (SAUO)

Misalignment Estimation Software System (MCD)

Mixed Evolutionarily Stable Strategy - Breeding selection

Model Evaluation Support System (COE)

Monitor Event Simulation System (IEEE)