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).
Pressor substance
A substance that elevates the arterial blood pressure. For example, prostacyclin (prostaglandin PGI2) is a potent pressor substance. In medicine, pressor refers to raising the blood pressure. The word comes from the French verb 'presser'…
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Show more- Herniorrhaphy The surgical repair of a hernia. Herniorrhaphy may be done under local or general anesthesia using a…
- C-section Short for Caesarian section, a procedure in which a baby, rather than being born vaginally, is surgically…
- Cholesterol lowering with fibrate The fibrates are cholesterol-lowering drugs that are primarily effective in lowering triglycerides and, to a…
- Cancer, adult primary liver A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular…
- Gene duplication An extra copy of a gene. Gene duplication is a key mechanism in evolution. Once a gene is duplicated, the…
- Dystonia, torsion A form of dystonia known as early-onset torsion dystonia (also called idiopathic or generalized torsion…
- Blood sugar Blood glucose. See also: High blood sugar; Low blood sugar
- Arachidonate 5-lipoxygenase-activating protein ALOX5AP. See: FLAP
- Nucleic acid >DNA (deoxyribonucleic acid) which contains the hereditary information in humans and >RNA (ribonucleic acid)…
- Hypoxic-ischemic encephalopathy Damage to cells in the central nervous system (the brain and spinal cord) from inadequate oxygen…
- FDA recalls Recalls: The recall of a defective or possibly harmful product by the US Food & Drug Administration (the…
- Infiltrate To penetrate. If an IV infiltrates, the IV fluid penetrates the surrounding tissue.