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).
Swimmer's ear
Swimmer's ear: Infection of the skin covering the outer ear canal that leads in to the ear drum, usually due to bacteria such as streptococcus, staphylococcus, or pseudomonas. Swimmer's ear is usually caused by excessive water exposure…
Read the definitionRandom terms
Show more- Hemorrhagic diarrhea, E. coli Bloody colitis (inflammation of the bowel) caused by E. coli, usually by the strain E. coli 0157:H7. The…
- MND Motor neuron disease
- Ectoparasite A parasite that lives on or in the skin but not within the body. Fleas and lice are ectoparasites…
- Depo-Provera contraceptive Injectable progestin (Depo-Provera) was approved by the U.S. Food and Drug Administration (FDA) for…
- Aortic insufficiency Incomplete closure of the aortic valve resulting in aortic regurgitation, the return of blood from the aorta…
- NIAAA (Nat'l Inst. on Alcoh. Abuse and Alcoholism) Sm: The National Institute on Alcohol Abuse and Alcoholism is one of the National Institutes of Health (NIH)…
- Hong Kong influenza See: Hong Kong flu
- Malignant ascites A condition in which fluid containing cancer cells collects within the abdomen
- Methylation 1. In chemistry, the addition of a methyl group to a molecule. 2. On a protein level, the addition of a…
- Hair loss Hair loss: Hair loss is the thinning of hair on the scalp. The medical term for hair loss is alopecia…
- Interleukin-2 A type of interleukin, a chemical messenger, a substance that can improve the body's response to disease. It…
- Tracheostomy button Tracheostomy button: A 1/2- to 1 1/2-inch-long plastic tube placed in the stoma to keep it open