Subscriber Identity Module 
Scientific Instrument Module 
Spectral Irradiance Monitor 
Science Instrument Module 
Space Interferometry Mission 
Subscriber Identification Module 
Set Initialization Mode 
Simms 
Society for Information Management 
Security Information Management 
selected ion monitoring 
simulate 
Simulation 
Simulator 
Society for Industrial Microbiology 
Synchronous Interface Module 
Systems Insight Manager 
scanning ion microscope 
scanning ion microscopy 
Scientific Instrumentation Module 
Secondary Ion Microscope 
selective ion monitoring 
Serial Interface Module 
Singapore Institute of Management 
Single Interface Module 
Society of Information Management 
Solar Irradiance Monitor 
Stanford Institute of Medicine 
Stress-Induced Martensite 
Subscriber Identity Modules