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).
Malformation, arteriovenous (AVM)
An arteriovenous malformation (AVM) is a congenital disorder (one present at birth) of blood vessels in the brain, brainstem, or spinal cord that is characterized by a complex, tangled web of abnormal arteries and veins connected by one or…
Read the definitionRandom terms
Show more- Nicotinic acid Deficiency of nicotinic acid (also known as niacin), one of the B-complex vitamins, causes pellagra. Pellagra…
- NIOSH The National Institute for Occupational Safety and Health, a US Federal agency responsible for conducting…
- HAV Hepatitis A virus
- Neurosteroid A brain steroid, a molecule structurally similar to cortisone, progesterone and the gonadal hormones…
- Mask, oxygen A mask that covers the mouth and nose, and is hooked up to an oxygen tank. It delivers oxygen directly to the…
- Osmolarity, plasma See: Plasma osmolarity
- Tremor Tremor: Any abnormal repetitive shaking movement of the body. Tremors have many causes and can be inherited…
- Anatomy in the Bible There are in the Bible but few direct references to the internal organs. Biblical poetry, however, abounds…
- SJS Stevens-Johnson syndrome.
- Artery, ophthalmic The ophthalmic artery supplies blood to the eye and adjacent structures of face. It arises from the internal…
- Tetralogy of Fallot A combination of four heart defects that are present together at birth, accounting for about 10% of all…
- Laparoscopic staging A staging procedure for tumors of the abdomen using laparoscopy in combination with laparoscopic…