MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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.
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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).
Visceral pericardium
The inner layer of the pericardium, a conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium has outer and inner coats. The outer coat is tough and thickened, loosely cloaks the…
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Show more- Lamin A/C The lamin family of proteins that make up the nuclear lamina, a matrix of protein located next to the inner…
- Recurrent aural vertigo A condition, also known as Meniere's disease, with recurrent vertigo accompanied by ringing in the ears…
- Hematemesis The medical term for bloody vomitus. The word 'hematemesis' is made up of 'hema-', blood + 'emesis', vomit =…
- Diseases, rickettsial The infectious diseases caused by the rickettsiae fall into 4 groups:(1) typhus: epidemic typhus…
- UDP-glucuronosyltransferase A liver enzyme essential to the disposal of bilirubin (the chemical that results from the normal breakdown of…
- Cross-species transplantation See Xenotransplantation
- Sanfilippo syndrome The most common disorder of mucopolysaccharide metabolism, a syndrome in which the onset of clinical…
- Heart murmur An unusual heart sound which may be innocent or reflect disease.
- Nephrotic syndrome, minimal change See: Minimal change disease
- Striatum Part of the basal ganglia of the brain. The basal ganglia are interconnected masses of gray matter located in…
- Eye Institute, National (NEI) One of the US National Institutes of Health, NEI's mission is to 'conduct and support research, training…
- Cervical cap A soft rubber cup with a round rim designed to fit snugly around the cervix and act as a barrier…