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).
External ear
There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The external ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the visible…
Read the definitionRandom terms
Show more- Sesamoid bone A little bone embedded in a joint capsule or tendon. The kneecap (patella) is a sesamoid bone
- Refsum disease A genetic disorder affecting the metabolism of the fatty acid phytanic acid. When phytanic acid accumulates…
- Appendicitis Appendicitis: Inflammation of the appendix, the small worm-like projection from the first part of the colon…
- Otalgia Ear pain; earache. Otalgia can originate within the ear, the ear canal, or the external ear. From otos, the…
- Test, radionucleide stress Stress: This procedure involves injecting a radioactive isotope (typically thallium or cardiolyte) into the…
- Doctor discontent See: Physician discontent
- Dyslexia Dyslexia: A specific reading disability due to a defect in the brain's processing of graphic symbols…
- Infection, ear (acute middle) Acute middle ear infection, medically called acute otitis media is inflammation of the middle ear. Acute…
- Pectus carinatum Pigeon-breasted. In Latin 'pectus' means 'chest' and 'carina' keel = a chest shaped like the keel of a boat…
- Hemi- Prefix meaning one half, as in hemiparesis, hemiplegia, and hemithorax. From the Greek hemisus meaning half…
- Ambulatory care Medical care including diagnosis, observation, treatment and rehabilitation that is provided on an outpatient…
- Cystine An amino acid that is particularly notable because it is the least soluble of all of the naturally occurring…