MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Retinal pigment epithelium
The pigment cell layer that nourishes the retinal cells. The retinal pigment epithelium is located just outside the retina and is attached to what is called the choroid, a layer filled with blood vessels that nourish the retina.
Read the definitionRandom terms
Show more- Lymphangioleiomyomatosis A structure consisting of a collection of blood vessels and lymph vessels that are overgrown and clumped…
- Renal tubules Small structures in the kidney that filter the blood and produce the urine
- Pedophilia People with pedophilia have fantasies, urges or behaviors that involve illegal sexual activity with a…
- Venereal Having to do with sexual contact. The word venereal comes from Venus, the Roman goddess of love. A venereal…
- Gingivitis, fusospirillary This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Ehlers-Danlos syndrome, dermatosparaxis type Lers-Danlos syndrome, dermatosparaxis type: A genetic disorder characterized by extremely fragile and sagging…
- Inuit health See: Artic health
- Sly syndrome A disorder of mucopolysaccharide metabolism characterized by short stature, coarsening of the facial…
- Nerve, eighth cranial The eighth cranial nerve is the vestibulocochlear nerve. The vestibulocochlear nerve is responsible for the…
- Acathisia See: Akathisia
- Active euthanasia The active acceleration of a 'good' death by use of drugs etc, whether by oneself or with the aid of a…
- Abuse, substance See: Substance abuse