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).
Para- (prefix)
A prefix with many meanings, including: alongside of, beside, near, resembling, beyond, apart from, and abnormal. For example, the parathyroid glands are called 'para-thyroid' because they are adjacent to the thyroid. For another example…
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Show more- Endocannabinoid A marijuana-like substance. 'Marijuana-like substances (endocannabinoids)... act at specific receptors on the…
- Osler, Sir William Renowned Canadian physician (1849-1919) who taught at McGill University, the University of Pennsylvania…
- Unassisted childbirth Birth of a baby without the assistance of an obstetrician, midwife, or other health professional. This may be…
- Cancer Cancer: An abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some cases, to…
- Scintimammography A scintigraphic imaging technique that uses the radioisotope technetium tetrofosmin (Tc-99 tetrofosmin) to…
- Bunion A bunion is a localized painful swelling at the base of the big toe (the great toe). The joint is enlarged…
- Prothrombin time A clotting test, the prothrombin time is done to test the integrity of part of the clotting scheme. The…
- Crohn enteris Crohn's disease (regional enteritis) involving only the small intestine. Crohn's disease is a chronic…
- Pancolitis Ulcerative colitis that involves the entire colon (the large intestine). Ulcerative colitis itself is a…
- FEV1 Forced Expiratory Volume in the first second. The volume of air that can be forced out in one second after…
- Familial dysautonomia A genetic disorder of the autonomic nervous system, affecting especially Ashkenazi Jewish children. Familial…
- Cholesterol lowering with fibrate The fibrates are cholesterol-lowering drugs that are primarily effective in lowering triglycerides and, to a…