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).
Barium
1. A metallic element belonging to the alkaline earths with an atomic number of 56 and an atomic weight of 137.34. The symbol for barium is Ba.2. In medicine, refers to a chalky solution of barium used to coat the inside of organs so that…
Read the definitionRandom terms
Show more- Nebulizer A device for administering a medication by spraying a fine mist into the nose. Also known as an atomizer
- Bright's disease Chronic inflammation of the blood vessels in the kidney with protein, specifically albumin, in the urine…
- Disease, Hirschsprung A congenital abnormality (birth defect) of the bowel in which there is absence of the ganglia (nerves) in the…
- Hyperparathyroidism Hyperparathyroidism: Too much parathyroid hormone resulting in abnormally high levels of calcium in the blood…
- Children of the dark Term applied sometimes to children with xeroderma pigmentosum, a genetic disease with such extraordinary…
- Beals, Rodney K. The hair that normally grows on the male face after puberty. Testosterone, the most potent of the naturally…
- Cholangi- Relating to a bile duct. From the Greek chole meaning bile + a(n)geion meaning a vessel = a bile vessel
- Disease, Canavan A severe progressive inherited (genetic) disorder of the central nervous system (CNS). The signs of Canavan…
- Alkaline phosphatase An enzyme made in the liver, bone, and the placenta and normally present in high concentrations in growing…
- Ophthalmitis Inflammation of the eye. Also known as ophthalmia
- Tick-borne rickettsioses of the eastern hemisphere There are 3 known diseases caused by infection with rickettsial agents. They are North Asian tick-borne…
- Surface EMG A technique in which electrodes are placed on (not into) the skin overlying a muscle to detect the electrical…