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).
Hygiene theory
See: Hygiene hypothesis
Read the definitionRandom terms
Show more- Plasmacytoma Cancer of the plasma cells (white blood cells that produce antibodies) that may turn into multiple myeloma
- Histiocytosis X Now called Langerhans cell histiocytosis. This disease is subclassified into eosinophilic granuloma, Letterer…
- Nerve, recurrent laryngeal One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After…
- Buboes The plural of 'bubo'
- Immunosuppressive 1. Pertaining to immunosuppression, the suppression of the immune system.2. An agent capable of suppressing…
- Syndrome, locked-in A neurological disorder characterized by complete paralysis of voluntary muscles in all parts of the body…
- Vaccinia adverse reaction See Smallpox vaccination adverse reaction
- Ophthalmoplegia with ragged-red fibers See: Kearns-Sayre syndrome
- Orifice An opening. The mouth for example is an orifice.
- SLS (Sjogren-Larsson syndrome) The Sjogren-Larsson syndrome is a genetic (inherited) disease usually characterized by a triad of clinical…
- Urethral opening, female The urethra is the transport tube leading from the bladder to discharge urine outside the body. In females…
- Topical Pertaining to a particular surface area. A topical agent is applied to a certain area of the skin and is…