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).
Maternal
The age of the mother at the time of delivery. Advanced maternal age is usually defined as age 35 or more at delivery. Advanced maternal age predisposes to Down syndrome (trisomy 21). The risk of having a Down syndrome baby rises with…
Read the definitionRandom terms
Show more- Leukocyte count A white blood cell (WBC) count.
- Pulmonary vein One of four vessels that carry aerated blood from the lungs to the left atrium of the heart. (The four are…
- Node, SA The SA node (SA stands for sinoatrial) is one of the major elements in the cardiac conduction system, the…
- Soper, Fred L. (1893-1977) American physician, epidemiologist and public health administrator. Soper won a Lasker Award in…
- Recurrence The return of a sign, symptom or disease after a remission. The reappearance of cancer cells at the same site…
- Breech The buttocks
- Bipolar II disorder Bipolar disorder in someone who has experienced depression and at least one episode of hypomania but not…
- Bradycardia A slow heart rate, usually defined as less than 60 beats per minute. The word bradycardia is logically…
- Contraceptive, diaphragm A barrier method of contraception that is available by prescription only and must be sized by a health…
- Manicheel tree A dangerous tropical tree whose sap is highly poisonous and corrosive. The sap comes out when a leaf is…
- Fear of heights An abnormal and persistent fear of heights. Sufferers experience severe anxiety even though they realize as a…
- Olfactory system See: Olfactory apparatus