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).
Aneurysm, dissecting
An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word 'aneurysm' comes from the Greek 'aneurysma'…
Read the definitionRandom terms
Show more- Thyroxine Abbreviated T4. A hormone made by the thyroid gland that has four iodine molecules attached to its molecular…
- Comminuted fracture A fracture in which bone is broken, splintered or crushed into a number of pieces. NTER> Note that…
- Tomogram A radiograph (x-ray) of a selected layer of the body made by tomography. A tomogram is a two-dimensional…
- Cranial nerve, seventh The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…
- Air travel with diabetes A concern for patients with diabetes is flying with medications and supplies. Letters from doctors are not…
- Indian Health Service (IHS) A part of the U.S. Public Health Service within the US Department of Health and Human Services, the Indian…
- Lung cancer, familial Lung cancer that recurs in families. Lung cancer can occur sporadically in people with no known family…
- Homosexual A person sexually attracted to persons of the same sex. Homosexuals include males (gays) and females…
- Thorax The area of the body located between the neck and the abdomen that contains the lungs, the heart and part of…
- C-section Short for Caesarian section, a procedure in which a baby, rather than being born vaginally, is surgically…
- Keratosis, solar Synonymous with actinic keratosis. See: Keratosis, actinic
- Indirect immunofluorescence assay A laboratory test used to detect antibodies in serum or other body fluid. The specific antibodies are labeled…