- decay rate
- decay scheme
- department of economics
- distributary
- difficult (to traverse)
- disagreeable
- dehardened
- dessert plate
- desertification
- diastrophism
- decline to set in
- diminuendo
- Dicranales
- dermatitis
- disk shape
- dominus
- deacon
- dominee
- dominie
- divine worship
- desquamate
- doctorow
- digestibility
- digestibleness
- dogcart
- dumpcart
- donkey cart
- doggerel verse
- doggerel
- disillusion
- direct evidence
- direct testimony
- dreyfus
- diverging lens
- dissuasion
- daylight vision
- dogstooth check
- deadpan
- defenestration
- desensitisation procedure
- desensitization technique
- desensitization procedure
- double_blind experiment
- double_blind procedure
- double_blind study
- drawn_out
- deriving
- defunctness
- decoction
- disencumber