MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Placenta praevia
A placenta implanted near the outlet of the uterus, so that at the time of delivery the placenta precedes the baby. Placenta praevia can cause painless bleeding in the last third of pregnancy, and may be a reason for a C-section. Also…
Read the definitionRandom terms
Show more- Ventricle, fourth >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Liver An organ in the upper abdomen that aids in digestion and removes waste products and worn-out cells from the…
- Farsightedness Farsightedness: Medically termed hyperopia; the ability to see distant objects more clearly than close…
- Atrophy Wasting away or diminution. Muscle atrophy is wasting of muscle, decrease in muscle mass. A nerve can also…
- Test, treadmill A test (sometimes called the exercise treadmill test or exercise test) in which a continuous…
- Morquio syndrome An inherited error in carbohydrate metabolism that results in mucopolysaccharide accumulation and severe…
- Peripheral pulmonary stenosis with cholestasis Also known as arteriohepatic dysplasia or Alagille syndrome, this ia a genetic disorder characterized by…
- Lymphoma, lymphoblastic A rapidly moving, aggressive form of lymphoma most often seen in children or young adults. Treatment may be…
- Caspase-3 See: Caspase 3
- Repetitive DNA DNA sequences that are repeated in the genome. These sequences do not code for protein. One class termed…
- Infection, breast See: Breast infection. See also: Mastitis
- Output, cardiac The amount of blood pumped by the heart per minute. The amount of blood put out by the left ventricle of the…