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).
Cat eye syndrome
A constitutional chromosome abnormality (one that is present at or before birth) with multiple malformations characterized by the combination of a cat-like slit of the iris of the eye (vertical coloboma) and no anal opening (anal atresia)…
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Show more- Advance directives These directives pertain to treatment preferences and the designation of a surrogate decision-maker in the…
- Headache, rebound Headaches experienced by those who have taken ergotamine or analgesic medications for migraines or other…
- Acute coronary syndromes A spectrum of conditions involving chest discomfort or other symptoms caused by lack of oxygen to the heart…
- Ear, outer There are three sections of the ear. They are the outer ear, the middle ear, and the inner ear. The outer ear…
- Visual acuity test This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart…
- Treadmill test A test (sometimes called the exercise treadmill test or exercise test) in which a continuous…
- Vulvodynia, essential A chronic, diffuse, unremitting sensation of burning of the vulva -- (the female external genital organs…
- Cannabis The botanical name for the plant from which marijuana comes. Its full name is Cannibis sativa. Use of…
- Syncope, vasovagal See: Vasovagal syncope
- Knee The knee is a joint which has three parts. The thigh bone (the femur) meets the large shin bone (the tibia)…
- Assembly, DNA The process of putting fragments of DNA that have been sequenced into their correct chromosomal positions…
- Leukopenia Lower than the normal amount of white blood cells.