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).
Esophagitis
Esophagitis: Inflammation of the esophagus. The esophagus is that soft tube-like portion of the digestive tract connecting the pharynx with the stomach.
Read the definitionRandom terms
Show more- Amnion A thin membrane surrounding the fetus during pregnancy. The amnion is the inner of the two fetal membranes…
- Lobstein's disease Osteogenesis imperfecta type I. An inherited, generalized connective tissue disorder featuring bone fragility…
- Reading frame One of the three possible ways to read a nucleotide sequence in DNA or RNA as a series of nonoverlapping…
- Rate, sed A sedimentation rate, or 'sed rate', is a blood test that detects and is used to monitor inflammation…
- Stress echocardiography Stress echocardiography: A supplement to the routine exercise cardiac stress test. During stress…
- Syphilis, congenital The third stage of syphilis, in which the syphilis spirochetes infect the brain and other organs of the body…
- OS (lens prescription) Abbreviation of 'oculus sinister.' Latin for 'left eye.' By contrast, OD stands for 'oculus dexter' which is…
- Aseptic bursitis Inflammation of a bursa that is not caused by infection. A bursa is a closed fluid-filled sac that functions…
- Idiopathic scoliosis A "wastepaper basket" for those cases of immune thrombocytopenic purpura whose cause is still unknown. See…
- Common cold Common cold: A viral upper respiratory tract infection. This contagious illness can be caused by many…
- Deja vu (In French, dejà vu means 'already seen.' and the word dejà has an acute accent on the e and a grave accent…
- Sinoatrial node The sinoatrial node (the SA node) is one of the major elements in the cardiac conduction system, the system…