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).
Mitral insufficiency
Incomplete closure of the mitral valve resulting in the backflow of blood from the left ventricle to the left atrium of the heart.
Read the definitionRandom terms
Show more- Toc- (prefix) Stemming from the Greek word 'tokos' meaning childbirth, we have toc-, toco-, tok-, and toko- as combining…
- Septum, nasal The dividing wall within the nose. The nasal septum runs down the middle of the nose creating two sides to…
- Random number table A table of numbers generated in an unpredictable, haphazard sequence. Tables of random numbers are used to…
- Kingella kingae A type of bacteria that has emerged from obscurity to become known as an important cause of invasive…
- Wrinkling, retinal See: Macular pucker
- Last menstrual period By convention, pregnancies are dated in weeks starting from the first day of a woman's last menstrual period…
- Tendon, patellar See: Patellar tendon
- Fats Plural of the word 'fat'. See the definition of fat
- Intensity modulated radiation therapy IMRT. A type of three-dimensional radiation therapy that uses computer-generated images to match radiation to…
- Pathologist A doctor who identifies diseases by studying cells and tissues under a microscope
- Remodelling, chromatin See: Chromatin remodeling
- Single upper palm crease See: Simian crease