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).
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Night blindness. Listed in medical dictionaries under 'Nyctalopia' from the Greek 'nyct' (night) + 'aloas' (obscure or blind) + 'opsis' (vision), the condition involves impaired vision in dim light and in the dark (but normal sight in…
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Show more- Trypanosoma cruzi The parasitic microorganism that causes Chagas disease. See: Chagas disease
- Family 1. A group of individuals related by blood or marriage or by a feeling of closeness. 2. A biological…
- Tonsil stone A tiny stone (calculus) in the tonsils. These stones, called tonsilloliths, are found within little pockets…
- Dermoid Also called a dermoid cyst of the ovary, this is a bizarre tumor, usually benign, in the ovary that typically…
- Intravenous immunoglobulin A sterile solution of concentrated antibodies extracted from healthy people that is given straight into a…
- Hand-arm vibration syndrome A disorder resulting from prolonged exposure to vibration, specifically to the hands and forearms while using…
- Ordre des Medecins The Conseil National de l'Ordre des Médecins. The French equivalent of the American Medical Association (the…
- Transdifferentiation An instrument that converts electrical energy into mechanical energy. A transducer can also act as a…
- ADD (attention deficit disorder) Attention deficit disorder: An inability to control behavior due to difficulty in processing neural stimuli…
- Eyelids, congenital ptosis of the Drooping of the upper eyelids at birth. The lids may droop only slightly or they may cover the pupils and…
- Valves, heart There are four heart valves. All are one-way valves. Blood entering the heart first passes through the…
- Tache noire Black spot (in French), a small ulcer covered with a black crust at the site of a tick bite, characteristic…