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).
Hemophagocytic lymphohistiocytosis
A rare, cancer-like disorder in which both histiocytes and lymphocytes start to proliferate and attack body tissues or organs. It can be an inherited condition, or it can occur as a result of immunosuppression (as in organ transplants) or…
Read the definitionRandom terms
Show more- Neonate A newborn baby.
- Meniscus, medial knee The word 'meniscus' refers to a crescent-shaped structure. The medial meniscus of the knee is a thickened…
- Elective surgery Surgery that is subject to choice (election). The choice may be made by the patient or doctor. For example…
- RML Acronym for the right middle lobe (of the lung). The right lung has three lobes: the right lower lobe (RLL)…
- Family history The family structure and relationships within the family, including information about diseases in family…
- Cellulitis Cellulitis: An acute spreading bacterial infection below the surface of the skin characterized by redness…
- Restriction map An array of sites in DNA susceptible to cleavage by diverse restriction enzymes
- Capsid The protein coat of a virus. The term capsid came in 1960 from the French capside, from the Latin capsa…
- Hansen disease Leprosy, a chronic granulomatous infection caused by a bacterium which affects various parts of the body…
- Intractable Unstoppable. For example, intractable diarrhea or intractable pain.
- NK cell See Natural killer cell
- Colorectal adenomatous polyposis, recessive Autosomal recessive form of colorectal adenomatous polyposis, See: MYH