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).
Drug, antibiotic
A drug used to treat bacterial infections. The original definition of an antibiotic was a substance produced by one microorganism that selectively inhibits the growth of another microorganism. However, wholly synthetic antibiotics (usually…
Read the definitionRandom terms
Show more- Streptococcus A group of bacteria, familiarly known as strep, that cause a multitude of diseases. The name comes from the…
- Congenital heart disease Congenital heart disease: A malformation of the heart or the large blood vessels near the heart. The term…
- Titin A giant filamentous protein essential to the structure, development, and elasticity of muscle. The gene…
- Hounsfield, Godfrey (1919-2004) British electrical engineer whose contributions to the creation of the computerized axial…
- Epi- A fold of skin that comes down across the inner angle (canthus) of the eye. The epicanthal fold is more…
- Segmental arterial Doppler pressures A test that measures the blood pressures in the legs to make sure there is normal blood flow. The test is…
- Postmaturity Overly mature, overly developed, especially as regards a baby. A baby born 2 weeks (14 days) or more after…
- Pituitary, posterior A mild form of eczema that occurs in young children and adolescents and produces mild patchy lightening and…
- Cell, rod A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provides side vision…
- CT Abbreviation for: 1. Cognitive therapy; and, more often today 2. Computerized tomography, as in CT scan. CT…
- Disease, Hirschsprung A congenital abnormality (birth defect) of the bowel in which there is absence of the ganglia (nerves) in the…
- Bag, air A bag that fills with air, designed for frontal impact crashes, the kind of crashes which account for more…