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).
Acute myocardial infarction
A heart attack. The term 'myocardial infarction' focuses on the heart muscle, which is called the myocardium,and the changes that occur in it due to the sudden deprivation of circulating blood. This is usually caused by arteriosclerosis…
Read the definitionRandom terms
Show more- Virus, negative-strand RNA See: Negative-strand RNA virus
- Cachectic Having cachexia, physical wasting with loss of weight and muscle mass due to disease. Patients with advanced…
- Th3 A distinct type of T-helper cell. See: T-helper cell
- Beta blocker A class of drugs that block beta-adrenergic substances such as adrenaline (epinephrine) in the 'sympathetic'…
- PAM Primary amebic meningoencephalitis
- Whitehead A familiar term for what is medically called a closed comedo. A comedo, the primary sign of acne, consists of…
- Olfactory bulb A key part of the olfactory apparatus consisting of a bulbous enlargement of the end of the olfactory nerve…
- Samaritan See Good Samaritan
- Elizabeth Blackwell See: Blackwell, Elizabeth
- Vibrotactile aid A mechanical instrument that helps individuals who are deaf to detect and interpret sounds through their…
- Neutrophilia More than the normal number of neutrophils, a type of white blood cell (specifically a form of granulocyte)…
- Dwarfism Abnormally short stature. Some forms are hereditary. The Little People of America (LPA) define dwarfism as an…