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).
Pulmonary hypertension
Pulmonary hypertension: High blood pressure in the pulmonary artery that conveys blood from the right ventricle to the lungs. The pressure in the pulmonary artery is normally low compared to that in the aorta. Pulmonary hypertension can…
Read the definitionRandom terms
Show more- Resectable Able to be removed (resected) by surgery
- Penis, erection of the When the penis fills with blood and is rigid. The penis contains two chambers, called the corpora cavernosa…
- Mastoiditis Inflammation of the mastoid, often secondary to ear infection.
- Xanthoma Yellowish firm nodules in the skin frequently indicating underlying disease, such as diabetes, disorder of…
- Hyperosmolarity In biochemistry, an osmolar concentration of the body fluids that is abnormally increased
- Sex-determining region, Y See: Y sex-determining region
- Postprandial After mealtime. A postprandial rise in the blood glucose level is one that occurs after eating. Most medical…
- Oral cholecystogram Oral cholecystogram: Abbreviated OCG. An x-ray procedure for diagnosing gallstones. The patient takes…
- Phosphorylation Phosphorylation is a biochemical process that involves the addition of phosphate to an organic compound…
- Writer's cramp A dystonia that affects the muscles of the hand and sometimes the forearm and only occurs during handwriting…
- APO-1 See: FAS gene
- Hemidiaphragm Half of the diaphragm, the muscle that separates the chest cavity from the abdomen and that serves as the…