Dacron
DDT
Decanting
Defined numbers Law of definite composition
Diagnostic tests defined
Diamond
Diatomic molecules
Dichromate-lead cell
Dienes
Dilution preparing a standard solution
Dimethyl ether
Dioxins
Dipole-dipole forces
Disaccharides
Disproportionation
Dissociation
DNA
Double bond
Double replacement reactions
Dry cell
Dry ice
Ductile metal
Dynamic equilibrium