dual - elem
- dual analogy
- dual authorship
- duality
- dubious conjecture
- dummy copy
- dummy experiment
- duplex forecast
- duplicate observation
- duplicate patent
- duplicated invention
- duplicated research
- duplicative project
- duration
- duration of copyright
- dynamic analysis
- dynamic balance
- dynamic causation
- dynamic concept
- dynamic decision
- dynamic equilibrium
- dynamic forecast
- dynamic forecasting
- dynamic frame
- dynamic modeling
- dynamic planning
- dynamic predictive model
- dynamic scenario
- dynamic simulation
- dynamic system
- dynamic technique
- dynamic theory
- dynamical analog
- dynamical analogy
- dynamical explanation
- dynamical lag
- dynamical method
- dynamical model
- dynamics
- earlier technology
- earliness of forecast
