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).
Mast cell
A connective tissue cell whose normal function is unknown but which is frequently injured in allergic reactions, releasing chemicals including histamine that are very irritating and cause itching, swelling, and fluid leakage from cells…
Read the definitionRandom terms
Show more- GBS Group B strep (or George Bernard Shaw). See also Group B streptococcus infection
- Berserk Frenzied, enraged. From the Norse berserkr, one of the old Norse warriors who worked themselves into a frenzy
- Infection, group B strep Group B strep: Group B strep are a major cause of infections involving the pregnant woman and her newborn…
- Tick typhus, African See Typhus, African tick
- OR (abbreviation) Stands for 'operating room'. A facility equipped for performing surgery. OR is sometimes written O.R.
- Rocky Mountain wood tick A tick that can transmit R. rickettsii, the agent of Rocky Mountain spotted fever. This tick is found in the…
- Interleukin-2 A type of interleukin, a chemical messenger, a substance that can improve the body's response to disease. It…
- Patella The kneecap by another name, the patella is the small bone that is in the front of the knee. The patella is a…
- Obstetrician A physician who delivers babies and is in the practice of obstetrics, the art and science of managing…
- Level 2 biosafety >Level 1 -- This level applies to agents that do not ordinarily cause human disease. >Level 2 -- This level…
- Hemophilia B Hemophilia due to deficiency of coagulation factor IX in the blood which results in prolonged oozing after…
- Cranial nerve IV The fourth cranial nerve, the trochlear nerve, is the nerve supply to the superior oblique muscle of the eye…