- distastefully
- dissentient
- dissident irish republican army
- deltoid leaf
- deceased forefathers
- detribalization
- deferent
- dimensionality
- discursiveness
- deforms
- deprecation
- dispraise
- derogative
- depreciation allowance
- depreciating
- double rail logic
- double refraction
- devoid of sense of proporation
- detestably
- dirtily
- dirty weekend
- defined item
- dustiness
- discernable
- discovered check
- dense list
- dense blazing star
- debarment
- dematerialise
- dematerialize
- diethylstilbestrol
- diethylstilboestrol
- divergency
- decanoic acid
- dodecanoic acid
- decimal notation
- decimal number system
- dibranchiate mollusk
- dibranchiate
- dibranch
- deviled egg
- Down's syndrome
- deficit loss
- deficit pulse
- Denisonia superba
- Dracunculidae
- dolichuranic
- digital section
- digital revolution
- defibrination