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).
Plaque
1. An semi-hardened accumulation of substances from fluids that bathe an area. Examples include dental plaque and cholesterol plaque. > >Minerals form dental plaque around the teeth as a result of bacterial action on food particles. Dental…
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Show more- Brown syndrome An ophthalmology (eye) problem. Brown syndrome is an abnormality that is present at birth (congenitally) and…
- Liver biopsy Liver biopsy: A procedure in which a small sample of the liver is removed for the diagnosis of abnormal liver…
- Filariasis, lymphatic See Lymphatic filariasis
- Lean body mass The mass of the body minus the fat (storage lipid). There are a number of methods for determining the lean…
- Acral-lentiginous melanoma See: Melanoma, acral-lentiginous
- Phospholipase An enzyme that catalyzes the splitting of a phospholipid molecule by the addition of water. Also called a…
- Cancer, oral Cancer of the mouth area. A sore in the mouth that does not heal can be a warning sign of oral cancer. A…
- Patient-activated cardiac event recorder A device that is implanted directly under the skin and is programmable with looping memory that records…
- Hyperuricemia Abnormally elevated blood level of uric acid. Uric acid is a breakdown product of purines that are part of…
- Posterior chamber The space in the eye behind the iris and in front of the lens. (The iris is the colored ring of tissue that…
- Menopause, natural Menopause, natural: Natural menopause occurs when the ovaries naturally decrease their production of the sex…
- Selenium poisoning Poisoning from selenium, a naturally occurring substance that is toxic at high concentrations but is also a…