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).
Osteosarcoma
A cancer of the bone that occurs predominantly in adolescents and young adults. It accounts for 5 percent of cancer in children. The site of the osteosarcoma is the most important prognostic factor since it determines whether the tumor can…
Read the definitionRandom terms
Show more- Gynecoid Like a woman, womanly, female. The word gynecoid comes from the Greek gyno, gynaikos meaning woman. Gyneco-…
- Cholecalciferol Vitamin D3
- Papillary muscle Small muscles within the heart that anchor the heart valves. The anchor ropes are the chordae tendineae…
- Gram calorie See: Calorie
- Hyperemesis gravidarum Excessive vomiting in early pregnancy. Hyperemesis gravidarum, by definition, leads to the loss of 5% or more…
- Polycythemia vera (PV) Overproduction (proliferation) of red blood cells due to bone marrow disease (myeloproferative disorder). PV…
- Fear of sharks Excessive and persistent fear of sharks is termed galeophobia. Sufferers from this phobia experience anxiety…
- Mycobacterium tuberculosis The bacterium that causes tuberculosis. M. tuberculosis has unusually waxy walls, is slow-growing and among…
- Incontinentia pigmenti In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the…
- Chromosome, dicentric A chromosome in the stage of the cell cycle (the sequence of events in the life of a cell) when a chromosome…
- Zona pellucida The strong membrane that forms around an ovum as it develops in the ovary. The membrane remains in place…
- Nephrocalcinosis The deposition of calcium (in the form of calcium phosphate and calcium oxalate) in the substance of the…