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).
Lysergic acid diethylamide
Better known as LSD. (LSD is the abbreviation for the German name for the drug: Lysergsaure-Diathylamid.) See: LSD
Read the definitionRandom terms
Show more- Reflux surgery (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Yeast vaginitis Yeast vaginitis: Infection of the vagina by a fungus known as Candida, characteristically causing itching…
- Dystonia, oromandibular Oromandibular dystonia affects the muscles of the jaw, lips, and tongue. The jaw may be pulled either open or…
- Colon polyp family history See: Colon cancer family history
- Aplasia Failure to develop. If something develops and then wastes away, that is atrophy.
- Fatty alcohol: NAD+ oxidoreductase deficiency Clinically known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized…
- Alpha interferon A protein produced by the body in response to an infection. There are 3 major classes of interferon -- alpha…
- Category five hurricane A hurricane with winds greater than 155 mph (135 kt or 249 km/hr). Storm surge generally greater than 18 ft…
- Callus 1. A localized firm thickening of the upper layer of skin as a result of repetitive friction. A callus on the…
- Cage, thoracic The structure formed by the thoracic vertebrae and ribs, the sternum (breastbone), and the costal cartilages…
- Syphilis test (FTA-ABS) The fluorescent treponemal antibody absorbed (FTA-ABS) test for syphilis is a blood serum screening test…
- Meningitis, viral Inflammation of the meninges (the tissues that cover the brain and spinal cord) caused by a virus, usually…