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).
Syndrome, sick sinus
Symptoms of dizziness, confusion, fainting, and heart failure due to a problem with the sinus node of the heart, which acts as the body's natural pacemaker. If the sinus node is not functioning normally, it is reflected in an abnormally…
Read the definitionRandom terms
Show more- Base sequence The order of the nucleotide bases -- adenine (A), thymine (T), guanine (G), and cytosine (C) -- in a DNA…
- Periappendiceal Near the appendix. Perforation of the appendix can lead to a periappendiceal abscess (a collection of pus…
- ABCD rating A staging system for prostate cancer. See the Jewett staging system
- Xanth- (prefix) A colorful prefix relating to a yellow color. 'Xanth-' is related to the word 'xanthic' which has its roots…
- Dermatitis and diarrhea, zinc deficiency Diarrhea, zinc deficiency:Among the consequences of zinc deficiency, dermatitis (skin inflammation) and…
- Solar keratosis Synonymous with actinic keratosis. See: Keratosis, actinic
- Exhaustion, heat A warning that the body is getting too hot. The person may be thirsty, giddy, weak, uncoordinated, nauseous…
- Coated stent Also known as a medicated stent. A tiny cage coated with a drug to prop open an artery and prevent it from…
- Lipid storage diseases A series of disorders due to inborn errors in lipid metabolism resulting in the abnormal accumulation of…
- Cancer, melanoma A skin cancer that begins in cells called melanocytes that can grow together to form benign (not cancerous)…
- Bladder cancer risks Smoking is a major risk factor. Cigarette smokers develop bladder cancer 2-3 times more often than do…
- Laser-assisted in situ keratomileusis A kind of laser eye surgery designed to change the shape of the cornea to eliminate or reduce the need for…