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).
Pernicious anemia
Pernicious anemia: A blood disorder caused by inadequate vitamin B12 in the blood. Patients who have this disorder do not produce the substance in the stomach that allows the body to absorb vitamin B12. This substance is called intrinsic…
Read the definitionRandom terms
Show more- Hogwarts headache Headache: A generalized headache from spending many hours reading an unusually long volume such as one of…
- RTS See Rett syndrome.
- Oral rehydration salts ORS. A solution of glucose-based salt solution used in oral rehydration therapy. WHO and UNICEF recommend a…
- Helper cell A type of T cell that participates in the immune response by recognizing foreign antigens and secreting…
- Autosomal dominant hereditary spastic paraplegia A degenerative disorder of nerves with progressive spasticity of the legs. Abbreviated as AD-HSP. Spasticity…
- Red jungle fowl Gallus gallus, the ancestor of domestic chickens
- Medigap Health insurance in the US that is intended to supplement Medicare benefits and presumably to fill the gaps…
- Single base change A change in which a single base in the DNA differs from the usual base at that position. These single base…
- Aphasia Aphasia: One in a group of speech disorders in which there is a defect or loss of the power of expression by…
- Pain, elbow Elbow pain is most often the result of tendinitis, which can affect the inner or outer elbow. Treatment…
- Meatus An opening or passageway. For example, the female urethral meatus. The urethra is the transport tube from the…
- IV cholangiogram See: Intravenous cholangiogram