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).
Leukemoid reaction
A benign condition in which the high number of white blood cells found in a blood test resembles the numbers seen in leukemia. For example, infectious mononucleosis can return blood-test results with a leukemoid reaction
Read the definitionRandom terms
Show more- Atelectasis, secondary See: Secondary atelectasis
- Gingivitis, phagedenic This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Peritonitis, acute Sudden inflammation of the peritoneum, the membrane lining the inner wall of the abdomen and pelvis…
- Miscarriage, multiple More than one miscarriage for a woman. In multiple miscarriages, there is about a 5 percent chance that one…
- Sigmoidoscopy, flexible Inspection of the inside of the rectum and lower part of the colon using a thin flexible lighted tube (a…
- Intensive care See critical care
- Peutz-Jeghers syndrome A cancer genetic disorder characterized by freckle-like spots on the lips, mouth and fingers and polyps in…
- Diachronic The word 'diachronic' is from the Greek dia-, through + chronos, time = through time. As opposed to…
- Hughlings Jackson See: Hughlings Jackson, John
- Juvenile rheumatoid arthritis See: Arthritis, systemic-onset juvenile rheumatoid
- Aristolochia fangchi A Chinese herb that is injurious to the kidney and is also associated with an increased risk of cancer of the…
- Organ failure The failure of an essential system in the body. Multiple organ failure is the failure of two or more systems…