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).
Rx
A medical prescription. The symbol 'Rx' is usually said to stand for the Latin word 'recipe' meaning 'to take.' It is customarily part of the superscription (heading) of a prescription. Another explanation for the origin of Rx is that it…
Read the definitionRandom terms
Show more- Pulse, Corrigan A pulse that is full and then suddenly collapses. Named for the Irish physician Dominic John Corrigan…
- Colpocephaly A brain disorder in which there is an abnormal enlargement of the occipital horns of the brain --the…
- Drug, prescription A drug requiring a prescription, as opposed to an over-the-counter drug, which can be purchased without one…
- Menorrhagia Excessive uterine bleeding occurring at the expected intervals of the menstrual periods. The bleeding from…
- Breast, infiltrating lobular carcinoma of the Ast, infiltrating lobular carcinoma of the : Infiltrating lobular carcinoma is the second most common type of…
- Laser, excimer See: Excimer laser
- False negative A result that appears negative but fails to reveal a situation. An example of a false negative: a particular…
- Ulcer, gastric A hole in the lining of the stomach corroded by the acidic digestive juices which are secreted by the stomach…
- IgG Immunoglobulin G, a major class of immunoglobulins found in the blood, including many of the most common…
- Score, Apgar A practical method to assess a newborn infant, the Apgar score is a number arrived at by scoring the heart…
- Knock-knees An abnormal curve of the legs that causes the knees to touch or nearly touch while the feet are apart. The…
- Type I error The statistical error (said to be 'of the first kind' or alpha error) made in testing an hypothesis when it…