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).
Nerve, sixth cranial
The sixth cranial nerve is the abducent nerve, a small motor nerve that has one task: to supply a muscle called the lateral rectus muscle that moves the eye outward. Paralysis of the abducent nerve causes inward turning of the eye…
Read the definitionRandom terms
Show more- Disease, pelvic inflammatory (PID) Despite its seeming lack of gender, this term is applied to women only. PID refers exclusively to ascending…
- Proton magnetic resonance spectroscopic imaging See: Magnetic resonance spectroscopic imaging
- Glioma, visual pathway See Visual pathway glioma
- Error, alpha The statistical error (said to be 'of the first kind' or type I) made in testing an hypothesis when it is…
- Infant, postmature A baby born 2 weeks (14 days) or more after the usual 9 months (280 days) of gestation. The gestation (length…
- Ear piercing The practice of using a needle or needle gun to make holes through the ear lobe or other parts of the ear for…
- Smooth muscle One of the three types of muscle tissue in the body (skeletal, smooth, cardiac). Generally forms the…
- Herbal 1. An adjective, referring to herbs, as in an herbal tea.2. A noun, usually reflecting the botanical or…
- Aneurysm, racemose An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an…
- Collagen, type IV, alpha 5 See: COL4A5
- Induced abortion An abortion that is brought about intentionally. Also called an artificial or therapeutic abortion. As…
- Dilatation and curettage Dilatation and curettage: A minor operation in which the cervix is expanded enough (dilatation) to permit the…