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.
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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).
Cancer, oat cell
See: Oat cell cancer
Read the definitionRandom terms
Show more- Allergic reaction The hypersensitive response of the immune system of an allergic individual to a substance. When an allergen…
- Fontanel (fontanelle) The word fontanel comes from the French fontaine for fountain. The medical term fontanel is a 'soft spot' of…
- Insufficiency, pulmonary See: Pulmonary insufficiency
- Disease, Castleman A disorder of lymphoid tissue (lymphadenopathy) with massive overgrowth (hyperplasia) of lymph nodes…
- Tetranucleotide A sequence of 4 base pairs. (Bases are the building blocks of DNA.) Expansion of a tetranucleotide repeat…
- Gustatolacrimal reflex See: Crocodile tears syndrome
- Mastoid The rounded protrusion of bone just behind the ear once thought to look like the breast. The word comes from…
- Right heart The heart is composed functionally of two hearts - the right heart and the left heart. The right heart…
- Subungual onychomycosis, proximal white The rarest form of fungus infection of the finger or toenail. (Fungus infection of the finger or toenail is…
- Disruption sequence The events that occur when a fetus that is developing normally is subjected to a destructive agent such as…
- Watermelon A fruit of African origin that is, in reality, a vegetable related to cucumbers and squash. Watermelon is 92%…
- Erythema chronicum migrans The classic initial rash of Lyme disease. In the early phase of the illness, within hours to weeks of the…