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).
Rickettsia
A member of a group of microorganisms that (like viruses) require other living cells for growth but (like bacteria) use oxygen, have metabolic enzymes and cell walls, and are susceptible to antibiotics. Rickettsiae cause a series of…
Read the definitionRandom terms
Show more- ErbB See: EGFR
- Hammer The malleus
- Dystonia, focal, due to torticollis See: Focal dystonia due to torticollis
- Cancer cluster A greater-than-expected number of cancer cases that occurs within a group of people in a geographic area over…
- Scrubs A protective garment designed to be worn by the doctor, nurse, and others in the operating room. The garment…
- Decompression, biliary See: Biliary decompression
- Gluteal Pertaining to the buttock region formed by the gluteal muscles (the gluteus maximus, gluteus medius, and…
- Esophageal ulcer A hole in the lining of the esophagus corroded by the acidic digestive juices secreted by the stomach cells…
- Sinus tachycardia A fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node. The sinoatrial (or…
- Syncope, micturition The temporary loss of consciousness upon urinating. (Syncope is the temporary loss of consciousness or, in…
- P in population genetics The frequency of the more common of two different alternative (allelic) versions of a gene. (The frequency of…
- Smallpox vaccination in eczema See Eczema vaccinatum