- dysphemism
- dianthus chinensis heddewigii
- Dianthus chinensis
- dirty joke
- dirty story
- double_faced
- double_tongued
- differential threshold
- difference threshold
- difference limen
- differential limen
- department of justice
- doj
- defensive
- degree day
- dichloromethane
- dichloride
- disgustingness
- dishful
- directional antenna
- dish towel
- dioon
- Delhi boil
- deccan hemp
- Dhegiha
- desert rat
- dipodomys phillipsii
- domestic sheep
- dinesen
- domestic goat
- dissimilation
- destructive metabolism
- discomfort
- discriminating
- diabetic coma
- dinar
- diode
- dog collar
- devil's milk
- digestive gland
- diclofenac sodium
- Daypro
- diclofenac potassium
- Dolobid
- dog pound
- defeat
- defile
- distress
- difficultness
- dictate