MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Sleep drug
Any drug used to help sleep. Most prescription sleep drugs are sedative hypnotic agents. They include Valium, Xanax, Restoril, Ambien, and Sonata
Read the definitionRandom terms
Show more- Fear of marriage An abnormal and persistent fear of being married. Sufferers of this phobia experience undue anxiety even…
- Megakaryocyte A giant cell in the bone marrow that is the ancestor of blood platelets.
- Pectus excavatum Caved-in or funnel chest. The Latin 'pectus' means 'chest.' The chest is excavated. It looks as if it has…
- Semen The fluid that is released through the penis during orgasm. Semen is made up of fluid and of sperm. The fluid…
- Ear The hearing organ. There are three sections of the ear, according to the anatomy textbooks. They are the…
- Hydroxyapatite Hydroxyapatite: A major component and an essential ingredient of normal bone and teeth. Hydroxyapatite makes…
- Gait A manner of walking. Observation of the gait can provide clues to a number of diagnoses including Parkinson…
- Test, Venereal Disease Research Laboratory A blood test for syphilis. Venereal Disease Research Laboratory is commonly abbreviated VDRL. A negative…
- Vaccinia, disseminated See Progressive vaccinia
- Martin Rodbell See: Rodbell, Martin
- Fourth ventricle >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Tendon The tissue by which a muscle attaches to bone. A tendon is somewhat flexible, but fibrous and tough. When a…