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).
Microembolus
An embolus of microscopic size. For example, a tiny blood clot or little clump of bacteria. Like any embolus, it travels through the bloodstream, lodges in a blood vessel and blocks it
Read the definitionRandom terms
Show more- Occlusion The act of occluding. See: Occlude
- Grand multipara The term 'multipara' applies to any woman who has given birth 2 or more times. A woman who has given birth 5…
- RLL Acronym for the right lower lobe (of the lung). The right lung has three lobes: the right upper lobe (RUL)…
- Bacteria Single-celled microorganisms which can exist either as independent (free-living) organisms or as parasites…
- Cardiopulmonary Having to do with both the heart and lungs
- Influenza, Spanish See: Spanish flu
- Osteonecrosis Bone death resulting from poor blood supply to an area of bone. Also known as aseptic necrosis or avascular…
- Activity, drug A measure of the physiological response a drug produces in the body. A less active drug produces less…
- Methadone treatment program A program for opiate addicts, usually conducted in an outpatient setting. These programs use a long-acting…
- Great pox Syphilis. An old name to distinguish it from the smallpox
- Pauling-Corey helix The alpha helix, the structure of most proteins, discovered by Linus Pauling and Robert Corey. See: Alpha…
- Carminative An agent that prevents or relieves flatulence (gas in the gastrointestinal tract) and, in infants, may help…