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).
Personality disorder, borderline
A serious mental illness characterized by pervasive instability in moods, interpersonal relationships, self-image, and behavior. This instability often disrupts family and work life, long-term planning, and the individual's sense of…
Read the definitionRandom terms
Show more- Electrolarynx A battery-operated instrument that makes a humming sound to help people who have lost their larynx to talk
- Smallpox vaccine A vaccine containing a live virus called vaccinia used to prevent smallpox. The vaccine does not contain the…
- Syndrome, Lennox-Gastaut A severe form of epilepsy that usually begins in early childhood and is characterized by frequent seizures of…
- United States Pharmacopeia Abbreviated USP. A publication, established in 1820, that contains legally recognized standards of identity…
- Multiple system failure The failure of two or more systems in the body as, for example, the cardiovascular and renal systems…
- Lancing device A device that holds a lancet firmly, and when triggered, moves the lancet linearly ahead to prick the skin in…
- Cryoprobe A surgical probe, a long slender pointed surgical instrument, used to apply extreme cold to tissues. From…
- Stroke, National Institute Neurological Disorders Nd (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…
- Anorexia, cancer See: Cancer anorexia
- Polymorphonuclear leukocyte A type of white blood cell with a nucleus that is so deeply lobated or divided that the cell looks to have…
- Rate, pulse The pulse rate is most often taken at the wrist. It measures the number of pulsations in the radial artery…
- Cleft palate An opening in the roof of the mouth (the palate) due to a failure of the palatal shelves to come fully…