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).
Popcorn worker's lung
A form of bronchiolitis obliterans, a severe obstructive lung disease, in workers who mix and package flavored microwave-popcorn or are involved in other flavoring manufacturing. In a typical case, a 40-year-old woman began work on a…
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Show more- Caseous Cheeselike. In caseous lymphadenitis, the lymph nodes turn into a soft, dry, crumbly mass resembling cheese…
- Optic nerve head The circular area in the back of the inside of the eye where the optic nerve connects to the retina
- Werner-His disease Named for the German physician Heinrich Werner (who did not describe Werner's premature aging syndrome) and…
- Insomnia Insomnia that occurs most nights and lasts a month or more. The treatment of chronic insomnia consists of…
- Radioactive tracer A radioactive molecule that can be sent through the body's circulatory or urinary system, with its progress…
- Effacement The thinning of the cervix which occurs before and while it dilates
- Grief Therapy for people who have unusually serious grief reactions. The goal of grief therapy is to identify and…
- Stethoscope An instrument used to transmit low-volume sounds such as the heartbeat (or intestinal, venous, or fetal…
- Defibrillation The use of a carefully controlled electric shock, administered either through a device on the exterior of the…
- Osteotomy, displacement Surgical reconfiguration of a bone by changing its physical relationship to other bones
- Primary liver cancer, adult A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular…
- INR Stings from large stinging insects such as bees, hornets, yellow jackets and wasps can trigger allergic…