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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Random
The process by which an outcome is determined solely by chance, for example, by a coin flip. A randomized controlled trial is a clinical trial that involves at least one test treatment and one control treatment and in which the treatments…
Read the definitionRandom terms
Show more- Medulla The innermost part. The adrenal medulla is the innermost part of that gland. The renal medulla is the inner…
- Disease, Paget See: Paget disease
- Enteroplasty Surgery on the intestine, especially to enlarge a constricted segment or lengthen a short bowel
- Tenth cranial nerve The tenth cranial nerve, and one of the most important, is the vagus nerve. All twelve of the cranial nerves…
- Vanishing lung syndrome A radiological syndrome in which the lungs appear to be disappearing on X-ray. The syndrome is characterized…
- Gamete intrafallopian transfer (GIFT) A technique in which the male and female germ cells required to begin formation of a human embryo are…
- Asthma susceptibility gene One of the genes that predisposes a person to asthma. A new gene family that plays a major role in asthma…
- Stress echocardiography Stress echocardiography: A supplement to the routine exercise cardiac stress test. During stress…
- Calcitonin Calcitonin: A hormone produced by the thyroid gland that lowers the levels of calcium and phosphate in the…
- Prospective study A study in which the subjects are identified and then followed forward in time
- Niemann-Pick disease type C Abbreviated NPC. A type of Niemann-Pick disease inherited in an autosomal recessive manner, resulting in…
- Breast lump A localized swelling, knot, bump, bulge or protuberance in the breast. Breast lumps may appear in both sexes…