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).
Valve, pulmonary
One of the four valves in the heart, the pulmonary valve stands at the opening from the right ventricle in the pulmonary artery trunk. It lets blood head in the right direction (toward the lungs) and keeps it from sloshing back from the…
Read the definitionRandom terms
Show more- Meiotic drive Preferential selection during meiosis (germ cell production). In meiotic drive there is preferential…
- Ocular histoplasmosis syndrome An eye disease that is a leading cause of vision loss, due to the spread of spores of the fungus Histoplasma…
- Screening mammogram Mammogram: A mammogram (an X-ray of the breast) in women who have no signs of breast cancer. It usually…
- Magnet therapy An alternative therapy in which magnetic fields are administered by application of magnets to certain parts…
- Unguis incarnatus Ingrown toenail
- Antinuclear antibody test Antinuclear antibody test: A test for unusual antibodies that are directed against structures within the…
- AP AP is a versatile abbreviation. It serves in cardiology to abbreviate angina pectoris (AP) and arterial…
- Familial tremor See: Essential tremor
- Insulin Insulin: A natural hormone made by the pancreas that controls the level of the sugar glucose in the blood…
- DNA splicing, alternative See Alternative splicing
- Neurofibromatosis type 2 Abbreviated NF2. A genetic disorder characterized by the growth of benign tumors of both acoustic nerves (the…
- Foramen of Magendie An opening from the fourth ventricle, which is one in a system of four communicating cavities called…