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).
Electromyogram
Electromyogram: A test used to record the electrical activity of muscles. When muscles are active, they produce an electrical current that is usually proportional to the level of muscle activity. An electromyogram (EMG) is also called a…
Read the definitionRandom terms
Show more- Pneumatic larynx A device that uses air to produce sound, helping a person whose larynx has been removed to talk
- Fluoroscopy An x-ray procedure that makes it possible to see internal organs in motion. Fluoroscopy uses x-ray to produce…
- Ant, fire Also called thief ants, a scourge, these red or yellow ants of small-to-medium size, originally from South…
- Digit, supernumerary An extra finger or toe
- Centromere The cinched 'waist' of the chromosome essential for the division and the retention of the chromosome in the…
- Insecticide A chemical used specifically to kill or control the growth of insects. Certain insecticides have been banned…
- Artery, carotid See: Carotid artery
- Hepatosplenomegaly Enlargement of the liver and spleen. The word 'hepatosplenomegaly' is compounded from Greek roots: 'hepato-'…
- Split-hand/split-foot malformation A genetic malformation syndrome of the limbs with syndactyly, median clefts of the hands and feet, and…
- Adjuvant therapy Treatment that is given in addition to the primary (initial) treatment. Adjuvant treatment is an addition…
- Optic nerve The optic nerve connects the eye to the brain. The optic nerve carries the impulses formed by the retina, the…
- Trichina spiralis Is a parasitic worm that lives in the intestines and causes a serious illness known as trichinosis. The eggs…