Also found in: Medical.
RMSSRocky Mountain Star Stare (Colorado)
RMSSRoland Michener Secondary School (Ontario, Canada)
RMSSResilient Mass Storage Server
RMSSReduced Memory System Simulator
RMSSRocky Mountain Stamp Show (Denver, Colorado)
RMSSRemote Manipulator System Simulator
RMSSReliability, Maintainability, Supportability and Safety
RMSSRisk Management and Safety Systems
RMSSRegimental Medical Supply Section
RMSSRisk Management Strategic Services, LLC
RmssRoot-Mean-Square in Seconds (US Geological Survey; used to calculate accuracy of quake power models)
RMSSResources Management Support Strategy
RMSSRocky Mountain Stick Shifters (drag racing forum)