.
Da, Db, Dc, Dd, De, Df, Dg, Dh, Di, Dj, Dk, Dl, Dm,
Dn, Do, Dp, Dq, Dr, Ds, Dt, Du, Dv, Dw, Dx, Dy, Dz, DNr
de Bary, Antonde Beer, Sir Gavin Rylands
De motu corporum in gyrum
De revolutionibus orbium coelestium
de Sitter, Willem
de Vega, Hector
De Forest, Lee
DEAP (Dark Matter Experiment using Argon Pulse-shape discrimination)
Debye integrals
Debye temperature
Decantation
Decay
Decay constant
Decile
Decinormal solution
Dedekind’s reciprocity law
Dedekind–Rademacher sum
Deep space flight and communications: exploiting the sun as a gravitational lens, Claudio Maccone
Deep Underground Neutrino Experiment
Deep Underground Science and Engineering Laboratory
Deer Lick group
Deformed-shell model
Degeneracy (quantum mechanics)
Degree of Freedom
Delamain, Richard
Delambre, Jean Baptiste
Delaunay or Delone Boris Nikolaevich
Delay differential equations
Delbrück, Max
Delineations of the Ox Tribe, George Vasey
Delta electrons
Delzant polytope
Deming, W. Edwards
Demlo numbers
Democritus (crater)
Demography
Demonax (crater)
Dendragapus canadensis
Dendragapus obscurus
Dendriopoterium menziesii var. menendezii
Dendrobium amethystoglossum
Dendrobium densiflorum
Dendrobium elepsophyllum
Dendrobium fimbriatum
Dendrobium Nestor
Dendrobium wardianum
Dendrocalamus asper
Dendrocalamus brandisii
Dendrocalamus giganteus
Dendrocalamus hamiltonii
Dendrocalamus hookeri
Dendrocalamus latiflorus
Dendrocalamus longispathus
Dendrocalamus membranaceus
Dendrocalamus merrillianus
Dendrocalamus sikkimensis
Dendrocalamus strictus
Dendrocygna arcuata
Dendrocygna autumnalis
Dendrocygna bicolor
Dendrocygna javanica
Dendrogram
Dendroica coronata
Dendroica townsendi
Dendropsophus microps
Dendropsophus minutus
Dendropsophus sanborni
Denjoy Theory
Density Function
Density matrix
Density parameter
Denumerants
Dependent and independent variables
Derrick–Hobart Theorem
Descriptive Statistics
Descriptive Zoopraxography, by Eadweard Muybridge
Desmarest, Nicolas
DESY (Deutsches Elektronen Synchrotron)
Determinism
* Deterministic chaos: an introduction
Deudorix deudorix
Deudorix virachola
Deuterocohnia brevispicata
Deuterocohnia lorentziana
Development of Gravity Pendulums in the 19th Century, Victor Fritz Lenzen and Robert P. Multhauf
Development of the Phonograph at Alexander Graham Bell's Volta Laboratory, Leslie J. Newville
Deville, Henri Étienne Sainte-Claire
Dewar James , Sir
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