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).
Thyrocalcitonin
A hormone, also called calcitonin, produced by the thyroid gland that lowers the levels of calcium and phosphate in the blood and promotes the formation of bone. Bone is in a constant state of remodeling whereby old bone is removed by…
Read the definitionRandom terms
Show more- Heart, left The heart is composed functionally of two hearts - the right heart and the left heart. The left heart…
- Nasal passage The walls of the nasal passages are coated with respiratory mucous membranes which contain innumerable tiny…
- Leptomeningeal Having to do with the leptomeninges, the two innermost layers of tissues that cover the brain and spinal…
- Hiatus An opening, as in the diaphragm. When there is an unusually wide opening in the diaphragm, there can be a…
- FTA-ABS test FTA-ABS stands for fluorescent treponemal antibody absorbed, a blood serum screening test for syphilis…
- Pneumocystis carinii Now called Pneumocystis jiroveci. See: Pneumocystis
- Cathartic A laxative
- Folic acid One of the B vitamins that is a key factor in the synthesis (the making) of nucleic acid (DNA and RNA). A…
- Chemical terrorism Terrorism using chemical agents. These chemical agents are poisonous gases, liquids or solids that have toxic…
- Fatty liver of pregnancy, acute Fatty liver of pregnancy, acute: Liver failure in late pregnancy, usually from unknown cause. Acute fatty…
- Phase, resting More appropriately called interphase. The interval in the cell cycle between two cell divisions when the…
- Zebra The term 'zebra' in medicine does not refer to the striped African animal but to an unlikely diagnostic…