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).
Bronchiolitis
Inflammation of the bronchioles, the airways that extend beyond the bronchi and terminate in the alveoli. Bronchiolitis is due to viral infections such as parainfluenza, influenza, adenovirus and, especially, respiratory syncytial virus…
Read the definitionRandom terms
Show more- Arhythmia We do not usually give a misspelling but this is a frequent misspelling of arrhythmia (with two r's), meaning…
- Virus, human immunodeficiency (HIV) The cause of AIDS. HIV has also been called the human lymphotropic virus type III, the lymphadenopathy-…
- Differential white cell count The proportions of the different types of white cells in the blood, usually split into the different types of…
- MEDLINE MEDLINE® is the best known database of the U.S. National Library of Medicine (NLM). MEDLINE enables anyone to…
- Convulsion An abnormal, involuntary contraction of the muscles most typically seen with certain seizure disorders. The…
- Therapy, psychodynamic See: Psychodynamic therapy
- Felty's syndrome Felty's syndrome: A complication of long-standing rheumatoid arthritis. See: Felty syndrome.
- Cat eye syndrome A constitutional chromosome abnormality (one that is present at or before birth) with multiple malformations…
- Wagner's syndrome See: Stickler syndrome
- Score, Gleason A grading system for prostate carcinoma. See Gleason score
- Breast infection Infection of breast tissue usually caused by bacteria, most often staph (Staphylococcus aureus), which are…
- Red corpuscles Red corpuscles are cells that carry oxygen in the blood. They are also called red blood cells or 'RBCs.'