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).
Lymph node, sentinel
The first lymph node ('gland') to receive lymphatic drainage from a tumor. Which lymph node is the sentinel node for a given tumor is determined by injecting around the tumor a tracer substance that will travel through the lymphatic system…
Read the definitionRandom terms
Show more- STI Abbreviation for: 1. Sexually transmitted infection. 2. Soft tissue infection. 3. Systolic time interval
- Disease, Fabry See: Fabry disease
- Borrelia A group of bacteria that are helical spirochetes of the genus Borrelia. Some species of Borrelia cause…
- BMI A person's weight in kilograms (kg) divided by their height in meters (m) squared. BMI stands for body mass…
- Brachydactyly Short, stubby fingers and toes. Brachydactyly is a frequent feature of syndromes of congenital malformation…
- Multipara, grand The term 'multipara' applies to any woman who has given birth 2 or more times. A woman who has given birth 5…
- Probability The likelihood that something will happen. For example, a probability of less than .05 indicates that the…
- Atrophic vaginitis Thinning of the lining (the endothelium) of the vagina due to decreased production of estrogen. This may…
- Antiparasitic Effective in the treatment of parasites. For example, nitazoxanide (Alinis) is an antiparasitic medication…
- Wart, genital A wart that is confined primarily to the moist skin of the genitals. These warts are due to viruses belonging…
- Cystectomy Surgery to remove the bladder. Cystic fibrosis: A common genetic disease inherited as a recessive condition…
- Acuity test, visual This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart…