DFR may refer to:
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Cosworth DFR
The DFV is an internal combustion engine that was originally produced by Cosworth for Formula One motor racing. The name is an abbreviation of ''Double Four Valve'', the engine being a V8 development of the earlier four-cylinder FVA, which had fo ...
, a 1987 race car engine
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Dean Forest Railway
The Dean Forest Railway is a long heritage railway that runs between Lydney and Parkend in the Forest of Dean, Gloucestershire.
The route was part of the former Severn and Wye Railway which ran from Lydney to Cinderford. The society that ope ...
, Gloucestershire, England
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Decreasing failure rate
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Deutscher Frauenring, a political advocacy organisation in Germany
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Dihydroflavonol 4-reductase
In enzymology, a dihydrokaempferol 4-reductase () is an enzyme that catalyzes the chemical reaction
:cis-3,4-leucopelargonidin + NADP+ \rightleftharpoons (+)-dihydrokaempferol + NADPH + H+
Thus, the two substrates of this enzyme are cis-3,4 ...
, an enzyme class
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Divergence-from-randomness model, in information retrieval
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Dounreay Fast Reactor, Scotland
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Dual fluid reactor
{{disambiguation