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).
Contraceptive device, intrauterine (IUD)
A device inserted into the uterus (womb) to prevent conception (pregnancy). The IUD can be a coil, loop, triangle, or T in shape made of plastic or metal. An IUD is inserted into the uterus by a health-care professional. Of two types of…
Read the definitionRandom terms
Show more- Foramen ovale An oval opening between the two upper chambers of the heart (the atria) that is a normal feature of the fetal…
- Clinical research trials Clinical research trials: Trials to evaluate the effectiveness and safety of medications or medical devices…
- Brown, Louise The world's first test-tube baby, conceived by in vitro fertilization and born on July 25, 1978
- Dipsophobia An abnormal and persistent fear of drinking alcohol. Sufferers of dipsophobia experience undue anxiety about…
- Serotonin A hormone, also called 5-hydroxytryptamine, in the pineal gland, blood platelets, the digestive tract, and…
- Bacterial prostatitis, chronic Prostatitis, chronic: Longstanding bacterial infection of the prostate gland superimposed on a defect in the…
- Helmet, bicycle A well-known but often neglected device designed to protect the head of a bicyclist. Helmets decrease the…
- Biosafety level A specific combination of work practices, safety equipment, and facilities which are designed to minimize the…
- RDIs (Reference Daily Intakes) Formerly known as hyaline membrane disease, a syndrome of respiratory difficulty in newborn infants caused by…
- Elizabeth Kubler-Ross See: Kübler-Ross, Elisabeth
- Jaundice Jaundice: Yellow staining of the skin and sclerae (the whites of the eyes) by abnormally high blood levels of…
- Tight foreskin See Phimosis