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).
Pityriasis alba
A common mild rash of unknown origin that can appear on a person of any age (most commonly at 10-35 years of age), may last from several weeks to several months, often begins with a "herald" patch, a large single pink patch on the chest or…
Read the definitionRandom terms
Show more- Stoma An opening into the body from the outside created by a surgeon
- Leiomyoma A benign tumor of smooth muscle, the type of muscle that is found in the heart and uterus. A leiomyoma of the…
- Catalysis The process by which a substance speeds up a chemical reaction without being consumed or altered in the…
- Exanthem subitum Means a sudden rash. A viral disease of infants and young children with sudden onset of high fever which…
- Contact dermatitis, allergic Also called allergic contact eczema, this is a red, itchy, weepy reaction where the skin has come into…
- Skin graft, pedicle A graft technique in which a piece of skin from a nearby area remains attached at one of its corners, while…
- Stereotactic needle biopsy A biopsy in which the spot to be biopsied is located three-dimensionally, the information is entered into a…
- Cancer, testicles Cancer of the male sex organ (testicle) that normally produces the hormone testosterone. One of the most…
- Antisocial personality See: Antisocial personality disorder
- Disease, Legionnaire A disease due to the bacteria Legionella pneumophila found in plumbing, shower heads and water-storage tanks…
- Bee sting Stings from bees and other large stinging insects such as yellow jackets, hornets and wasps can trigger…
- Ammonia A colorless gas with a very sharp odor. Made both by humans and by nature, ammonia dissolves easily in water…