EFDA may refer to:
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European Fusion Development Agreement
EFDA (1999 — 2013) has been followed by EUROfusion, which is a consortium of national fusion research institutes located in the European Union and Switzerland.
The European Union has a strongly coordinated nuclear fusion research programme. At ...
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EFDA Nations Cup
The EFDA Nations Cup was a Formula Opel competition which was held between 1990 and 1998. The competition pitted international drivers against each other in similar cars, with drivers representing their nations. It was founded by Dan Partel withi ...
, an automobile racing competition between 1990 and 1998 by the European Formula Drivers Association
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4′-ethynyl-2-fluoro-2′-deoxyadenosine (EFdA), a nucleoside analog that potently inhibits HIV replication
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