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).
Virus
A microorganism smaller than a bacteria, which cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself. It may reproduce with fidelity…
Read the definitionRandom terms
Show more- Fibroma, nonossifying A growing lesion with a fibroma structure. Treatment is by surgery
- Thermally induced asthma Asthma: Asthma that is 'triggered' by vigorous physical activity. Exercise-induced asthma tends particularly…
- Substance Abuse and Mental Health Services Nistration: A part of the U.S. Public Health Service, SAMHSA works to improve the quality and availability of…
- Gland, pituitary The main endocrine gland. It is a small structure in the head and is called the master gland because it…
- Power of attorney, durable This is a type of advance medical directive in which legal documents provide the power of attorney to another…
- Choroidal melanoma See: Melanoma, choroidal
- Prostatectomy The surgical removal of the prostate gland. NTER>
- Neurologist A doctor who specializes in the diagnosis and treatment of disorders of the nervous system
- Aetiology The study of the causes. For example, of a disorder. The word 'aetiology' is mainly used in medicine, where…
- Malabsorption The impaired absorption by the intestines of nutrients from food. Malabsorption can be specific and involve…
- Floater A blurry spot that seems to drift in front of the eyes but does not block vision. The blur is the result of…
- Immunization, mumps Mumps: See Immunization, MMR