noun: (calculus) Initialism of delay differential equation. [(calculus) a type of differential equation in which the derivative of the unknown function at a certain time is given in terms of the values of the function at previous times]
noun: (computing) Initialism of Dynamic Data Exchange.
noun: (ethics) Initialism of doctrine of double effect.
noun: (organic chemistry) Initialism of dichlorodiphenyldichloroethylene. [(organic chemistry) A metabolite of DDT.]
