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).
System, sympathetic nervous
A part of nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. The sympathetic nervous system together with the parasympathetic nervous system (that slows the heart rate, increases intestinal…
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Show more- Pathogen inactivation A process designed to eliminate most pathogens -- viruses, bacteria and fungi -- from water, air or donated…
- Counselor, genetic A health professional with a specialized graduate degree and experience in the areas of medical genetics and…
- Heterochromatin, constitutive Heterochromatin that is fixed and irreversible. Regions of constitutive heterochromatin are located at very…
- Hair of the dog An alcoholic chaser reputed to relieve a hangover, usually needed the morning after imbibing too much…
- Medical geography An important 'new' area of health research that is a hybrid between geography and medicine dealing with the…
- MiRNA Micro-RNA
- Oculoplastics Eye plastic and reconstructive surgery., a specialized area of ophthalmology that focuses on the eyelids and…
- Xeromammography Xeroradiography of the breast. Xeroradiography is a photoelectric method of recording an x-ray image on a…
- Spectrophobia An abnormal and persistent fear of ghosts. Sufferers of spectrophobia experience undue anxiety even though…
- Anticoagulant Any agent used to prevent the formation of blood clots. Anticoagulants have various uses. Some are used for…
- Selenium An essential trace mineral that functions largely in the form of proteins, called selenoproteins, which act…
- Peripheral nervous system ): That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous…