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).
Factor, rheumatoid
Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a blood test for the diagnosis of rheumatoid arthritis. Rheumatoid factor is present in about 80% of adults (but a much lower proportion of children)…
Read the definitionRandom terms
Show more- Donor insemination A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the…
- Kernig sign A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal…
- Disease, cardiovascular Disease affecting the heart or blood vessels. Cardiovascular diseases include arteriosclerosis, coronary…
- Papilla, anal See: Anal papilla
- Acupressure The application of pressure on specific points on the body to control symptoms such as pain or nausea…
- Tailbone Popular name for the coccyx, the small bone at the bottom of the spine made up of 3-5 rudimentary vertebrae.
- Pathogen, special See: Special pathogen
- Hepatic biopsy See: Liver biopsy
- Regurgitation A backward flowing. For example, of food. Or the sloshing of blood back into the heart (or between chambers…
- Fluoride A compound of fluorine with another element or radical. Fluoride compounds are present in drinking water and…
- Cousin marriage Marriage involving cousins. Everyone carries rare recessive alleles, rare genes that are generally innocuous…
- Dystrophica myotonia 2 See: Myotonic dystrophy type 2