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).
Dextroposition of the heart
The heart is displaced to the right (from its usual location in the left chest). There is no anatomic alteration in the heart itself, just in its location. Dextroposition occurs when the contents of the left side of the chest shove the…
Read the definitionRandom terms
Show more- Vincent infection This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Tag, skin A small tag of skin that may have a stalk (a peduncle). Skin tags may appear on the skin almost anywhere…
- Nostrum A worthless remedy. 'Nostrum' is an example of a term that came from medicine, entered the world beyond…
- Decongestant A drug that shrinks the swollen membranes in the nose and makes it easier to breath. Decongestants can be…
- Methylation 1. In chemistry, the addition of a methyl group to a molecule. 2. On a protein level, the addition of a…
- Gallium A rare metal with the atomic weight of 69. There are several isotopic forms of gallium that differ from it in…
- Peripheral iridectomy A surgical procedure in which a hole is made in the periphery (outer part) of the iris by removing a…
- Mastectomy A general term for removal of the breast, usually to remove cancerous tissue. The operation can be done in a…
- Splenectomy An operation to remove the spleen
- Overgrowth syndrome One in a group of disorders resulting in overgrowth, as evidenced by unusually large size at birth, excessive…
- Genome, Caenorhabditis elegans See: Dog genome.
- Onchocerciasis River blindness, a disease caused by a parasitic worm (Onchocerca volvulus) which is transmitted to persons…