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).
Hypnic headache
A relatively rare form of headache disorder in which the patient is awakened from sleep nightly, usually between 1 and 3am, with intense dull or throbbing pain over the whole head. Each episode may last up to 1 hour and be associated with…
Read the definitionRandom terms
Show more- In situ hybridization The use of a DNA or RNA probe to detect the complementary sequence. In situ hybridization is like all nucleic…
- Septum, interventricular The wall separating the lower chambers (the ventricles) of the heart. A hole in the interventricular septum…
- Disease, Vrolik's Osteogenesis imperfecta type II, an inherited connective tissue disorder with very severe bone fragility, the…
- Nucleic acids See nucelic acid
- Variola The old practice of inoculating someone with the virus of smallpox to produce immunity to the disease. Lady…
- Gastroentenologist A common misspelling of gastroenterologist
- Biopsy, excisional See: Excisional biopsy
- Tumor registry Recorded information about the status of patients with tumors. Although a registry was originally the place…
- Arrectores pilorum Tiny muscles that act as the hair erector muscles. The arrectores pilorum play a key role in goose bumps, a…
- Jejunum Part of the small intestine. It is half-way down the small intestine between its duodenum and ileum sections…
- Landau-Kleffner syndrome Landau-Kleffner syndrome: A disorder with seizures starting in childhood in which the patient loses skills…
- Endometrial ablation Removal of the lining of the womb. Removing the uterine lining decreases menstrual flow or stops it…