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).
Long arm of a chromosome
The long arm of a chromosome is termed the q arm. All human chromosomes have 2 arms, the p (short) arm and the q (long) arm. They are separated from each other only by a primary constriction, the centromere, the point at which the…
Read the definitionRandom terms
Show more- Middle ear infection, acute Acute middle ear infection, medically called acute otitis media is inflammation of the middle ear. Acute…
- Fasting blood glucose A method for learning how much glucose (sugar) there is in a blood sample taken after an overnight fast. The…
- Prostate cancer Prostate cancer: An uncontrolled (malignant) growth of cells in the prostate gland which is located at the…
- Olefactory Common misspelling of olfactory
- Gallop rhythm Heart rhythm like the gallop of a horse.
- Bellini duct carcinoma (BDC) A rare type of kidney cancer that begins in the duct of Bellini (a continuation of the collecting…
- Physicians Health Study A very large, long-term, randomized study initiated in 1982 to look at the effects of aspirin and…
- Incontinent Unable to control excretions, to hold urine in the bladder or keep feces in the rectum. This is the usual…
- Penis, cancer of the Cancer of the penis is a disease in which cancer (malignant) cells originate in the tissues of the penis…
- Fluctuating rib One of the last two ribs. A rib is said to be 'fluctuating' if it does not attach to the sternum (the breast…
- Gametic Pertaining to the gamete (the sperm or eggs)
- Women's Health Initiative A hospital for the exclusive use of women. The first hospital called by that name was the Woman's Hospital of…