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.
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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)…
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Show more- Metaphyseal chondrodysplasia (McKusick type) See: Cartilage hair hypoplasia syndrome
- Climacteric 1. The menopause in women.2. The corresponding time in the life of men.From the Greek klimakter, meaning…
- Radiation oncology Also called radiation therapy or radiotherapy, radiation oncology is the use of high-energy rays to damage…
- Hypovolemic shock See shock.
- Helper cell A type of T cell that participates in the immune response by recognizing foreign antigens and secreting…
- Coitus Sexual union of a male and a female; also called sexual intercourse. Coitus begins when the male inserts his…
- Rehab Short for Rehabilitation
- Jackknife seizure See: Infantile spasms
- Miscarriage Miscarriage: Inadvertent loss of a pregnancy before the fetus is viable. A considerable proportion of…
- Rumination 1. Regurgitating food after a meal and then swallowing and digesting some of it. Cattle and other ruminant…
- Valves, heart There are four heart valves. All are one-way valves. Blood entering the heart first passes through the…
- Genomic >A chromosomal genome which is in the nucleus of the cell; and >A mitochondrial genome which is outside the…