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).
Principal investigator
In biomedical research, the person who directs a research project or program. The principal investigator (the PI) usually writes and submits the grant application, oversees the scientific and technical aspects of the grant, and has…
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Show more- Bariatric Pertaining to bariatrics, the field of medicine concerned with weight loss
- Memory, working Short-term (recent) memory. Working memory is a system for temporarily storing and managing the information…
- National Institute of Neurological Disorders Stroke (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…
- Infant, post-term An overly mature baby that has not been born until well after the usual term pregnancy. A post-term baby is…
- Air bag A bag that fills with air, designed for frontal impact crashes, the kind of crashes which account for more…
- Electrocardiogram Electrocardiogram: A recording of the electrical activity of the heart. An electrocardiogram is a simple…
- Hemangioma, cavernous A type of hemangioma composed of blood-filled 'lakes' and channels. It is typically raised and red or…
- Monoarticular Involving just one joint. As opposed to polyarticular (affecting many joints). From the Latin 'articulus,'…
- Dominant >Achondroplasia (a common form of dwarfism with short arms and legs), >Familial hypercholesterolemia (high…
- Chromosome, metaphase See: Y chromosome
- Toxoplasmosis (toxo) Toxoplasmosis (toxo): An infection caused by a single-celled parasite named Toxoplasma gondii that may invade…
- Canine heartworm Dirofilaria immitis. See: Heartworm