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).
RNA virus
A virus in which the genetic material is RNA. The RNA may be either double- or single-stranded. There are 6 classes of viruses. The DNA viruses constitute classes I and II. The RNA viruses make up the remaining classes. Class III viruses…
Read the definitionRandom terms
Show more- Involute 1. Literally, to turn inward or roll inward. 2. To decrease in size after an enlargement. The uterus…
- Carotenoid One of a group of compounds that includes beta-carotene, alpha-carotene, and beta-cryptoxanthin which are…
- Primary immunodeficiency disease A disorder caused by an inherited flaw in the immune system that increases the susceptibility to infections…
- Vertebrae, sacral There are 5 sacral vertebral bones. They are represented by the symbols S1 through S5 and are situated…
- Bed sore A painful, often reddened area of degenerating, ulcerated skin caused by pressure and lack of movement, and…
- Nutritional neuroscience The field of nutrition that relates to the central and peripheral nervous system. Nutritional neuroscience…
- Blood pressure, high Also known as hypertension, high blood pressure is, by definition, a repeatedly elevated blood pressure…
- Xeroderma pigmentosum A genetic disease characterized by such extraordinary sensitivity to sunlight that it results in the…
- Gamete The sperm or the egg. Each human gamete normally has 23 chromosomes, the haploid number of chromosomes, half…
- Apraxia of speech A severe speech disorder characterized by inability to speak, or a severe struggle to speak clearly. Apraxia…
- Spastic colitis A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…
- Strait-jacket See: Straitjacket