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).
Incubation period
In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the disease appear. For example, the incubation period of chickenpox is 14-16 days. In biology, the incubation period is the time needed…
Read the definitionRandom terms
Show more- CD95 See: FAS gene
- Cardiac aneurysm An outpouching of an abnormally thin portion of the heart wall. Cardiac aneurysms tend to involve the left…
- Tympano- Prefix indicating a relationship to the ear drum (tympanum). For example, tympanometry is a test that…
- Ames test A test developed in 1974 by Bruce N. Ames for identifying possible carcinogens by studying their mutagenic…
- Mitral regurgitation Backflow of blood from the left ventricle to the left atrium of the heart due to mitral insufficiency from…
- Labial Pertaining to the lip, one of the fleshy folds which surround the opening of the mouth or the vagina. Oral…
- Emergency medical technician A person trained in the performance of the procedures required in emergency medical care. You are most likely…
- Contact healing Another name for the alternative medicine practice of laying on of hands. See: Laying on of hands. See also…
- Gastric MALT lymphoma A low-grade malignant lymphoma of the stomach associated with chronic infection by the bacterium H. pylori…
- Fear of nudity An abnormal and persistent fear of nudity is called gymnophobia. Sufferers of this phobia experience undue…
- Trichoepithelioma A small benign tumor derived from basal cells in the hair follicle. Trichoepithelioma may occur sporadically…
- Penrose drain A soft tube-shaped rubber or silicone drain. Named for the American gynecologist Charles Bingham Penrose…