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).
IUD (intrauterine contraceptive device)
A device inserted into the uterus (womb) to prevent conception (pregnancy). The IUD can be a coil, loop, triangle, or T-shape. It can be 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- Tumor marker Tumor markers are substances that can be detected in higher-than-normal amounts in the blood, urine, or body…
- Keratotic scabies See crusted scabies
- Frame, open reading See: Open reading frame
- Steroid A general class of chemical substances that are structurally related to one another and share the same…
- Drug, antifungal A drug used to treat fungal infections. Examples of antifungal drugs include miconazole (MONISTAT) and…
- Male breast cancer Male breast cancer: See: Breast cancer, male.
- Gap junction An organized collections of protein channels in cell membranes that allows ions and small molecules to pass…
- Color hearing A form of chromesthesia in which hearing a musical tone elicits the perception of a color. In one case, an…
- Trichina spiralis Is a parasitic worm that lives in the intestines and causes a serious illness known as trichinosis. The eggs…
- Elliptocytosis Hematologic disorder characterized by elliptically shaped red blood cells (elliptocytosis) with variable…
- HS Hereditary spherocytosis. HS also stands for half-strength, hamstrings, heart sounds, heparan sulfate, hernia…
- Hypothyroidism Deficiency ofroid hormone which is normally made by the thyroid gland which is located in the front of the…