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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Automatic behavior
A behavior that is performed without conscious knowledge and that does not appear to be under conscious control. This curious type of behavior occurs in a number of neurological and psychiatric disorders. The neurologic disorders…
Read the definitionRandom terms
Show more- Stereotactic needle biopsy A biopsy in which the spot to be biopsied is located three-dimensionally, the information is entered into a…
- Lung reduction surgery A surgical treatment for patients with advanced emphysema in which 20-35% of the emphysematous lung is…
- Perchlorate A chemical used as the primary ingredient of solid rocket propellant and in munitions beginning in the 1950s…
- Zeitgeber An environmental agent or event that provides the cue for setting or resetting a biological clock. To be…
- Aseptic bursitis Inflammation of a bursa that is not caused by infection. A bursa is a closed fluid-filled sac that functions…
- Genes, breast cancer susceptibility Breast cancer susceptibility: Inherited factors that predispose to breast cancer. Put otherwise, these genes…
- TNFRSF6 Tumor necrosis factor receptor superfamily, member 6. Also called FAS. See: FAS gene
- Syndrome, prune belly Partial or complete absence of the abdominal muscles so that the outlines of the intestines are visible…
- Fever, breakbone An acute mosquito-borne viral illness of sudden onset that usually follows a benign course with headache…
- HRT (hormone replacement therapy) The combination therapy of estrogen plus progestogen, termed hormone replacement therapy (HRT). Estrogen…
- Biopsy, incisional See: Incisional biopsy
- Virus, attenuated To attenuate is to weaken or to make (or become) thin. The word derives from a combination of the Latin…