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).
Fear of age
An abnormal and persistent fear of growing old is termed gerascophobia. Sufferers of gerascophobia feel undue anxiety about aging even though they may be in good health -- physically, economically and otherwise. They may worry about the…
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Show more- Library, cDNA A collection of DNA sequences generated from mRNA (messenger RNA) sequences. This type of DNA library…
- Gibbon heart-lung machine The first heart-lung machine. Named for the American physician John H. Gibbon who built it in 1937. This…
- Liminal In neurolgy, at the threshold of perception to a sensory stimulus. In other words, just barely perceptible to…
- Cafe au lait spot A flat spot on the skin that is the color of coffee with milk (café au lait) in persons with light skin, or a…
- Hepatoma Cancer originating in the liver, in liver cells. More often called hepatocarcinoma or hepatocellular…
- Vitamin B -- nicotinic acid Deficiency of nicotinic acid (also known as niacin), one of the B-complex vitamins, causes pellagra. Pellagra…
- System, central nervous (CNS) That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS)…
- Napiform A little-used but useful adjective meaning turnip-shaped. Large and round at the top and tapering down…
- Progressive supranuclear palsy Progressive supranuclear palsy: A neurologic disorder of unknown origin that gradually destroys cells in many…
- Epidermis The upper or outer layer of the two main layers of cells that make up the skin. The epidermis is mostly made…
- Enteric-coated Coated with a material that permits transit through the stomach to the small intestine before the medication…
- Anesthetist 1. In the US, a nurse or technician trained to administer anesthetics.2. In the UK, the same as an…