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).
International unit (IU)
An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used for the fat-soluble vitamins (such as vitamins A, D and E) and certain hormones, enzymes, and biologicals (such as vaccines). The…
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Show more- La Leche League An international organization that helps and supports breastfeeding mothers with advice, ideas, and legal and…
- Vitamin B2 An essential nutrient found in meat, dairy foods, plant foods and grain products. The body requires vitamin…
- C1 (cervical vertebra) C1 is the first cervical (neck) vertebra which is called the atlas. It supports the head. The atlas bone is…
- Subtotal hysterectomy Hysterectomy: The uterus is surgically removed but the cervix is left is left in place. Also called a partial…
- African tick typhus One of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky Mountain spotted…
- Cardioversion The conversion of one cardiac rhythm or electrical pattern to another, almost always from an abnormal to a…
- Disease, Gerstmann-Straussler-Scheinker See: Gerstmann-Sträussler-Scheinker syndrome
- Hemoglobinuria The presence of free hemoglobin in the urine, an abnormal finding, that may make the urine look dark…
- Reading frame, open See: Open reading frame
- Myocyte, cardiac See: Cardiac myocyte
- Genome, Yersinia pestis See: Plague bacterium genome
- Sever condition Sever condition: Inflammation of the growth plate of the calcaneus, the bone at the back of the heel. The…