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).
Meiotic drive
Preferential selection during meiosis (germ cell production). In meiotic drive there is preferential production of certain gametes. This alters the segregation of genes from the Mendelian expectations. Meiotic drive is a mechanism for…
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Show more- Histiocyte A type of white blood cell, also called a macrophage, that is created by the bone marrow. They usually stay…
- Heart valves There are four heart valves. All are one-way valves. Blood entering the heart first passes through the…
- Coprophobia An abnormal and persistent fear of feces (bowel waste). Sufferers of coprophobia experience anxiety even…
- Gastroesophageal reflux The return of stomach contents back up into the esophagus This frequently causes heartburn because of…
- Therapy, external beam radiation Radiation focused from a source outside the body on the affected area (for example, the cancer) within the…
- Sensorium The totality of those parts of the brain that receive, process and interpret sensory stimuli. The sensorium…
- Stewart See: Stewart, Alice
- Zona 1. A synonym for shingles. 2. Any zone or encircling area. 3. Any area with a specific boundary. Zona, Latin…
- Third degree burn See: Burn, third degree
- Degenerative joint disease Also known as osteoarthritis, this type of arthritis is caused by inflammation, breakdown and eventual loss…
- AVM (arteriovenous malformation) An arteriovenous malformation (AVM) is a congenital disorder (one present at birth) of blood vessels in the…
- Translocation, Robertsonian A relatively very common and medically significant type of chromosome rearrangement that is formed by fusion…