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).
AV (atrioventricular)
AV is the standard medical abbreviation for atrioventricular, a combination that means pertaining to the atria (the upper chambers of the heart) and the ventricles (the lower chambers of the heart). For example, the AV node is an…
Read the definitionRandom terms
Show more- Drug-transporter gene See: Gene, transporter
- Sequence tagged site (STS) A short (200 to 500 base pair) DNA sequence that occurs but once in the genome and whose location and base…
- Dental braces (orthodontics) Dental braces (orthodontics): The use of devices to move teeth or adjust underlying bone. The ideal age for…
- Polio immunization One of the two polio vaccines that are available: oral polio vaccine (OPV) and inactivated polio vaccine…
- Snake bite Snake bites: A bite of a venomous snake, such as a rattlesnake, copperhead, cottonmouth water moccasin, or…
- Acute confusional state See: Delirium
- Asparagine An amino acid, one of the 20 building blocks of protein. Asparagine is nonessential to the diet since the…
- Anticipatory grief The normal mourning that occurs when a patient or family is expecting a death. Anticipatory grief has many of…
- Blueberry root See: Blue cohosh
- Death rate The number of deaths in the population divided by the average population (or the population at midyear) is…
- Kyphoplasty A procedure similar to vertebroplasty, but with the intent of expanding the collapsedvertebra. A surgical…
- Ulnar nerve A major nerve in the upper extremity. The ulnar nerve begins in the lower cervical and upper thoracic…