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).
Error of the second kind
See: Error, beta
Read the definitionRandom terms
Show more- Ascending aorta The ascending aorta is the first section of the aorta, the largest artery in the body. The ascending aorta…
- Serotonin reuptake inhibitor, selective A selective serotonin reuptake inhibitor (SSRI) is one of the commonly prescribed drugs for treating…
- Abiotic 1. Not associated with living organisms.2. Anything in the environment incapable of life, such as the soil or…
- Disease, Castleman A disorder of lymphoid tissue (lymphadenopathy) with massive overgrowth (hyperplasia) of lymph nodes…
- Therapy, testosterone replacement The practice of giving testosterone to treat conditions in which the testes do not produce enough…
- Ventricular beat, premature See: Extrasystole
- Acute coronary syndromes A spectrum of conditions involving chest discomfort or other symptoms caused by lack of oxygen to the heart…
- Hoarseness Hoarseness: Hoarseness is a term referring to abnormal voice changes. Hoarseness may be manifested as a voice…
- Dyspraxia of speech A developmental disability characterized by difficulty in muscle control, specifically of the muscles…
- Clinodactyly Curving of the fifth finger (the little finger) toward the fourth finger (the ring finger). Sometimes called…
- Diabetes, adult-onset Type 2 diabetes. See also Diabetes, type 2
- Diabetic dermopathy A skin condition characteristic of diabetes involving light brown or reddish oval or round scaly patches…