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).
Adenosine thallium scan
A method of examining the heart to obtain information about the blood supply to the heart muscle. Special cameras take a series of pictures of the heart. Radioactive thallium is injected into the bloodstream and serves as a tracer. The…
Read the definitionRandom terms
Show more- Category four hurricane A hurricane with winds 131-155 mph (114-135 kt or 210-249 km/hr). Storm surge generally 13-18 ft above…
- Follicle, hair See: Hair follicle
- Benzodiazepines A class of drugs that act as tranquilizers and are commonly used in the treatment of anxiety. Benzodiazepines…
- Tendonopathy, patellar See: Patellar tendonitis
- Tenosynovitis, De Quervain's 1) The pressure within a vessel, such as blood pressure: the pressure within the blood vessels. For example…
- Transvestism Dressing in the clothing of the opposite sex. Transvestism is distinct from both transsexualism and…
- T4 Thyroxine, a thyroid hormone. The number 4 is sometimes in subscript
- Ferritin The major iron storage protein. The blood level of ferritin serves as an indicator of the amount of iron…
- Midnight children Term applied sometimes to children with xeroderma pigmentosum, a genetic disease with such extraordinary…
- Medication, antimicrobial A drug used to treat a microbial infection. Antimicrobial is a general term that refers to a group of drugs…
- Perinatal transmission Transmission of a disease-causing agent (a pathogen) from mother to baby during the perinatal period, the…
- Stone, tonsil A tiny stone (calculus) in the tonsils. These stones, called tonsilloliths, are found within little pockets…