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).
Barotitis
Middle ear problems due to changing atmospheric pressures, as when a plane descends to land. The problems include ear pain, ringing, diminished hearing and, sometimes, dizziness. The word barotitis (pronounced bar-o-tit-is) is compounded…
Read the definitionRandom terms
Show more- Surgery, off-pump See: Off-pump surgery
- Pauling-Corey helix The alpha helix, the structure of most proteins, discovered by Linus Pauling and Robert Corey. See: Alpha…
- External genitalia, male See: Male external genitalia
- Diaphragmatic hernia Hernia: Passage of a loop of bowel through the diaphragm muscle. This type of hernia occurs as the bowel from…
- Primary tumor A tumor that is at the original site where it first arose. For example, a primary brain tumor is one that…
- HS Hereditary spherocytosis. HS also stands for half-strength, hamstrings, heart sounds, heparan sulfate, hernia…
- Hemangioma, cavernous A type of hemangioma composed of blood-filled 'lakes' and channels. It is typically raised and red or…
- Sickness, mountain >If possible, don't fly or drive to high altitude. Start below 10,000 feet (3,048 meters) and walk up. >If…
- Vasomotor rhinitis Inflammation of the nose (rhinitis) due to abnormal neuronal (nerve) control of the blood vessels in the…
- Sesamoiditis Inflammation of a sesamoid bone. Since the patella (kneecap) is a sesamoid bone, inflammation of the patella…
- Tick, American dog See American dog tick
- Long QT syndrome An inherited defect in heart rhythm that predisposes to syncope without warning (sudden fainting spells)…