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.
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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).
Arrector pili
A microscopic band of muscle tissue which connects a hair follicle to the dermis. When stimulated, the arrector pili will contract and cause the hair to become more perpendicular to the skin surface (stand on end)
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Show more- Idiot savant See: Autistic savant. The term 'autistic savant' is preferred to the old term 'idiot savant' as less…
- Vein, jugular The jugular veins are in the neck and drain blood from the head, brain, face and neck and convey it toward…
- EBS (epidermolysis bullosa simplex) See: Epidermolysis bullosa simplex
- Cranial nerve X The tenth cranial nerve, and one of the most important, is the vagus nerve. All twelve of the cranial nerves…
- Respiratory insufficiency The condition in which the lungs cannot take in sufficient oxygen or expell sufficient carbon dioxide to meet…
- Seventh cranial nerve The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…
- Posterior chamber The space in the eye behind the iris and in front of the lens. (The iris is the colored ring of tissue that…
- Percutaneous endoscopic gastrostomy (PEG) Percutaneous endoscopic gastrostomy (PEG): A surgical procedure for placing a feeding tube without having to…
- Yeast diaper rash Rash: Infection in the diaper area caused by a yeast formerly called Monilia and now called Candida. These…
- Asexual 1. Without sexual desire or interest. Someone with seemingly no sexual drive. 2. Referring to reproduction…
- Intravitreous In the vitreous, the fluid behind the lens in the eye. As in an intravitreous injection.
- Mucositis Inflammation of the mucous membranes lining the digestive tract from the mouth on down to the anus. Mucositis…