(redirected from Optical Packet Experimental Routing Architecture)
OPERAOscillation Project with Emulsion-Tracking Apparatus (Geneva, Switzerland)
OPERAOpen PLC European Research Alliance
OPERAOptical Packet Experimental Routing Architecture (lightwave technology)
OPERAOperational Programme for the Exchange of Weather Radar Information (EUMETNET)
OPERAOffers and Prospectuses Electronic Repository and Access (Singapore)
OPERAOut-Performance Equity Redeemable in Any Asset (convertible bond)
OPERAOrganised Programme of Experimentation and Research into ATM
OPERAOn-Line Periodicals and Research Area (IEEE)
OPERAOfficer Professional Effectiveness Review for the Army (Australian Army)
OPERAOffice of Program Evaluation & Risk Analysis
OPERAOutpatient Endometrial Resection and Ablation (medical procedure)
OPERAOpinion, Perspective, Expertise, Research, Analysis
OPERAObservatoire Permanent de la Radioactivité dans l'Environnement (French: Permanent Observatory of Radioactivity in the Environment)
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