- Dextrocardia
- Dextromethorphan
- Dextropropoxyphene
- Dextrorphan
- Dextrose
- Dextrothyroxine
- Dezocine
- Dhat syndrome
- DiGeorge syndrome
- Diabesity
- Diabetes
- Diabetes Control and Complications Trial
- Diabetes insipidus
- Diabetes mellitus
- Diabetes mellitus in pregnancy
- Diabetes mellitus type 1
- Diabetic amyotrophy
- Diabetic angiopathy
- Diabetic cardiomyopathy
- Diabetic cheiroarthropathy
- Diabetic coma
- Diabetic dermopathy
- Diabetic diet
- Diabetic embryopathy
- Diabetic foot
- Diabetic foot infection
- Diabetic foot ulcers
- Diabetic hypoglycemia
- Diabetic ketoacidosis
- Diabetic macular edema
- Diabetic nephropathy
- Diabetic neuropathy
- Diabetic papillopathy
- Diabetic peripheral neuropathy
- Diabetic retinopathy
- Diabetogenic
- Diabetologist
- Diabody
- Diabulimia
- Diacerein
- Diacetyl
- Diacylglycerol
- Diacylglycerol acyltransferase
- Diacylglycerol kinase
- Diacylglycerol lipase
- Diadenosine tetraphosphate
- Diadochokinesia
- Diafiltration
- Diagnosis
- Diagnosis Related Group
- Diagnosis of exclusion
- Diagnosis related groups
- Diagnosis-related group
- Diagnostic
- Diagnostic Interview for Genetic Studies
- Diagnostic agent
- Diagnostic and Statistical Manual of Mental Disorders
- Diagnostic delay
- Diagnostic equipment
- Diagnostic imaging
- Diagnostic odds ratio
- Diagnostic overshadowing
- Diagnostic tests
- Dialectical behavior therapy
- Dialister
- Diallyl trisulfide
- Dialogical self
- Dialysate
- Dialysis
- Dialysis adequacy
- Dialysis disequilibrium syndrome
- Dialysis machine
- Dialysis tubing
- Dialyzer
- Diamine oxidase
- Diaminobenzidine
- Diaminopimelic acid
- Diaminopyrimidine
- Diamond-Blackfan anemia
- Diamond-blackfan anemia
- Diamondoid
- Diamorphine
- Dianion
- Dianisidine
- Diapause
- Diapedesis
- Diaper
- Diaper dermatitis
- Diaper rash
- Diaphoresis
- Diaphragm
- Diaphragm injury
- Diaphragm muscle
- Diaphragm pacing
- Diaphragma sellae
- Diaphragmatic excursion
- Diaphragmatic pacemaker
- Diarrhea
- Diarrhoea
- Diary studies
- Diarylquinoline
- Diaschisis
- Diastase
- Diastasis
- Diastasis recti
- Diastema
- Diastematomyelia
- Diastereoisomers
- Diastereomers
- Diastolic
- Diastolic blood pressure
- Diastolic depolarization
- Diastolic dysfunction
- Diastolic function
- Diastolic heart failure
- Diastolic heart murmur
- Diastolic pressure
- Diastrophic dysplasia
- Diathermy
- Diathesis
- Diathesis stress model
- Diathesis-stress model
- Diatomaceous earth
- Diatomic molecules
- Diatomite
- Diatrizoate
- Diatrizoic acid
- Diauxic growth
- Diazepam
- Diazinon
- Diazirine
- Diazo
- Diazolidinyl urea
- Diazonium compound
- Diazoxide
- Dibenzazepine
- Dibenzofuran
- Dibenzothiophene
- Dibenzoxepin
- Dibutyl phthalate
- Dibutyl sebacate
- Dicarbonate
- Dicarboxylic acid
- Dicarboxylic acids
- Dicentric chromosome
- Dicer
- Dichloralphenazone
- Dichloramine
- Dichlorine
- Dichlorobenzene