- Dopamine therapy
- Dopamine transporter
- Dopamine β-hydroxylase
- Dopamine-responsive dystonia
- Dopaminergic
- Dopaminergic pathways
- Dopexamine
- Doping
- Doppler echocardiography
- Doppler ultrasonography
- Doppler ultrasound
- Doppler velocimetry
- Dor procedure
- Dorea
- Dorello's canal
- Doripenem
- Dormancy
- Dornase alfa
- Dorsal anterior cingulate cortex
- Dorsal aorta
- Dorsal artery of the penis
- Dorsal cochlear nucleus
- Dorsal column
- Dorsal column nuclei
- Dorsal horn
- Dorsal intercalated segment instability
- Dorsal interossei of the hand
- Dorsal interosseous muscle
- Dorsal lip
- Dorsal lobe
- Dorsal longitudinal fasciculus
- Dorsal mesentery
- Dorsal motor nucleus
- Dorsal nasal artery
- Dorsal nerve of the clitoris
- Dorsal nerve of the penis
- Dorsal rami
- Dorsal raphe nucleus
- Dorsal respiratory group
- Dorsal root
- Dorsal root ganglia
- Dorsal root ganglion
- Dorsal scapular artery
- Dorsal scapular nerve
- Dorsal slit
- Dorsal spinocerebellar tract
- Dorsal stream
- Dorsal tegmental nucleus
- Dorsal vertebrae
- Dorsalis pedis artery
- Dorsiflexion
- Dorsolateral prefrontal cortex
- Dorsomedial hypothalamic nucleus
- Dorsomedial prefrontal cortex
- Dorsum sellae
- Dorzolamide
- Dosage compensation
- Dosage forms
- Dose
- Dose area product
- Dose dumping
- Dose fractionation
- Dose profile
- Dose rate
- Dose response
- Dose response relationship
- Dose-dense chemotherapy
- Dose-ranging study
- Dose-response curve
- Dose-response relationship
- Dose-volume histogram
- Dosha
- Dosimeters
- Dosimetry
- Dosing
- Dostarlimab
- Dosulepin
- Dot blot
- Dot plot
- Dotatoc
- Double Bubble
- Double Deficit
- Double aortic arch
- Double balloon enteroscopy
- Double contrast barium enema
- Double depression
- Double inlet left ventricle
- Double lumen tube
- Double minute chromosomes
- Double outlet right ventricle
- Double pneumonia
- Double stranded DNA
- Double stranded RNA
- Double-balloon enteroscopy
- Double-contrast barium enema
- Double-disk diffusion test
- Double-stranded RNA
- Double-stranded RNA viruses
- Doublecortin
- Doublesex
- Doubly labeled water
- Doulas
- Dounce homogenizer
- Dovitinib
- Down regulation
- Down syndrome
- Downregulation and upregulation
- Downstream processing
- Doxacurium
- Doxapram
- Doxazosin
- Doxepin
- Doxercalciferol
- Doxifluridine
- Doxil
- Doxorubicin
- Doxycycline
- Doxylamine
- Dracunculiasis
- Dracunculus
- Dracunculus medinensis
- Dragon NaturallySpeaking
- Dragon's blood
- Draize test
- Drama therapy
- Dravet syndrome
- Draw-a-Person test
- Draw-a-person test
- Drawer test
- Dream speech
- Dreaming
- Dress syndrome
- Dressler syndrome
- Dressler's syndrome
- Dried blood spot
- Dried blood spot testing
- Drinking
- Drinking water
- Drive theory
- Driving phobia
- Dromotropic
- Dronabinol
- Dronedarone
- Drones
- Drooling
- Drop attack
- Droperidol
- Drosha
- Drosophila
- Drosophila melanogaster