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).
Aortic insufficiency
Incomplete closure of the aortic valve resulting in aortic regurgitation, the return of blood from the aorta into the left ventricle of the heart
Read the definitionRandom terms
Show more- Breastfeeding practices The practices to be followed in breastfeeding a baby. Human milk is the preferred feeding for all infants…
- Lipomatosis, multiple symmetric A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper…
- Primary atelectasis Failure of the lung to expand fully at birth. In contrast to secondary atelectasis in which there is partial…
- Hormone, T3 Triiodothyronine, a thyroid hormone. The number 3 is usually in subscript
- BRCA2 A gene that normally acts to restrain the growth of cells in the breast and ovary but which, when mutated…
- Glu Glutamic acid. See also: Amino acid symbols
- Epidural anesthetic An anesthetic agent injected into the epidural space, the space outside the dura -- the outermost, toughest…
- Resection Surgical removal of part of an organ
- Kalemia The presence of potassium in the blood. The word 'kalemia' is seldom used today although it is the basis for…
- Forensic Dealing with the application of scientific knowledge to legal problems and legal proceedings as, for example…
- RNA virus A virus in which the genetic material is RNA. The RNA may be either double- or single-stranded. There are 6…
- Acute coronary syndromes A spectrum of conditions involving chest discomfort or other symptoms caused by lack of oxygen to the heart…