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- Electron microscopy A recording of the eye movements, usually done to confirm the presence of nystagmus. Electronystagmogram may…
- Poison Any substance that can cause severe distress or death if ingested, breathed in, or absorbed through the skin…
- Antimicrobial agent A general term for drugs, chemicals, or other substances that either kill or slow the growth of microbes…
- Iodine excess Just as too little iodine can cause thyroid disease, so may prolonged intake of too much iodine also lead to…
- DNA assembly The process of putting fragments of DNA that have been sequenced into their correct chromosomal positions…
- DNA repair gene, Med1 A gene that codes for one of the key enzymes involved in repairing DNA. The DNA in genes is constantly…
- Amaurotic familial idiocy An outdated term for Tay-Sachs disease (TSD) which is concisely defined by OMIM (Online Mendelian Inheritance…
- Endoscopic ultrasound Ultrasound: Aviated EUS. A procedure that combines endoscopy and ultrasound to obtain images and information…
- Domain In molecular biology, a discrete portion of a protein with its own function. The combination of domains in a…
- Rash, vesicular A raised, blistery rash
- EMSY A novel protein that connects the familial and sporadic forms of breast cancer and ovarian cancer. Some cases…
- Antimicrobial medication A drug used to treat a microbial infection. The term 'antimicrobial' is a general one that refers to a group…