Abbreviations beginning with a

ARDCAmerican Racing Drivers Club
Sports » Racing

ARDCIAgricultural and Rural Development for Catanduanes Inc. (Phillipines)
Governmental

ARDCORPAgricultural Research and Development Corporation (Canada)
Business

ARDDAcadiana Regional Development District (Louisiana)
Academic & Science

ARDDAgriculture and Rural Development Department (various locations)
Academic & Science

ARDDAlberta Renewable Diesel Demonstration (Canada)
Academic & Science

ARDDAutomatic Roller Detent Decoupler (aviation; helicopters)
Governmental

ARDDAuxiliary Repair Dry Dock
Governmental

ARDDAnimal Resources Development Department (India)
Miscellaneous

ARDDPAdvanced Reading Development Demonstration Project (Chicago, IL)
Miscellaneous

ARDEAnnual Review of Development Effectiveness (World Bank)
Academic & Science

ARDEArmament Research And Development Establishment
Academic & Science » Research

ARDEaspect ratio dependent etching
Academic & Science

ARDEAspect-Ratio-Dependent Etching
Academic & Science » Electronics

ARDEAssociazione Romana di Entomologia (Italian: Rome Entomological Association; Italy)
Academic & Science

ARDEAnnual Review Of Development Effectiveness
Community » Development

ARDEArmament Research and Development Establishment
Community » Development

ARDEArmament Research and Development Establishment (Pune, India)
Governmental

ARDEAcción Republicana Democrática Española
International » Spanish

ARDEAcción Republicana Democrática Española (Spanish: Spanish Democratic Republican Action)
Miscellaneous