MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Case-to-infection ratio
The ratio of the number of cases of a disease compared to the number of infections with the agent that causes the disease. Also called the case-to-infection proportion
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Show more- N-nitroso-fenfluramine A variant of fenfluramine. See: Fenfluramine
- Peripheral Situated away from the center, as opposed to centrally located. For example, peripheral vision means the type…
- Vitamin E Alpha-tocopherol, an antioxidant vitamin which binds oxygen free radicals that can cause tissue damage…
- Parasitic worm A worm classified as a parasite. (A parasite is a disease-causing organism that lives on or in a human or…
- Anemia, aplastic See: Aplastic anemia
- Probiotic A microbe that protects its host and prevents disease. The best-known probiotic is Lactobacillus acidophilus…
- Xerogram A picture of the body recorded on paper rather than on film. Also called a xeroradiograph. From the Greek…
- Alogia 1. Complete lack of speech, as in profound mental retardation or advanced dementia. Alogia is synonymous in…
- Yersiniosis An infectious disease caused by a bacterium called Yersinia enterocolitica (and, less often, other forms of…
- Menstruation, cessation of Menstruation, cessation of: Menstruation ends naturally in middle age with the onset of the menopause. It can…
- Thyroid hormone organification defect IIb See Pendred syndrome
- Genome, Saccharomyces cerevisiae The genome of the bacterium that causes cholera. This genome contains over 4 million bases in its DNA…