Dioc - doub
- Dioctophyma renale
- Dioctophyma renale infection
- Dioctophymatidae
- dioctophymiasis
- diophathalmus
- diopter
- dioptometer
- diose
- dioxide
- dioxin
- dioxygenase
- dipentene
- dipeptide
- dipetalonema
- diphallus
- diphasic
- diphenhydramine
- diphenol oxidase
- diphtheria
- diphtheria antitoxin
- diphtheric membrane
- diphtheric stomatitis
- diphtheric tracheitis
- diphtherin
- diphtheriolysin
- diphtheroid
- diphyllobothriasis
- Diphyllobothriidae
- Diphyllobothrium latum
- diphyodont
- Diplococcus
- Diplococcus pneumoniae
- diploe
- diploid
- diploid chromosome
- diploid number
- diploidy
- diplomyelia
- diplopagus monster
- diplotene stage
