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).
Attenuated
Weakened, diluted, thinned, reduced, weakened, diminished. The use of 'attenuated' in medicine is not new. In the 16th century, eating dried figs was claimed to attenuate the body fluids. Now 'attenuated' refers to procedures that weaken…
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Show more- Cytogenetics The study of chromosomes, the visible carriers of DNA, the hereditary material. Cytogenetics is a fusion…
- Tricuspid Having three flaps or cusps. The valve that is called the tricuspid valve is situated between the right…
- Dorsal The back or posterior side of a structure. "Dorsum" is the Latin word for the back. Something pertaining to…
- Mendelian inheritance The manner in which genes and traits are passed from parents to their children. The four modes of Mendelian…
- Transthyretin A plasma protein consisting of 127 amino acids that binds retinol and thyroxine. The gene TTR that encodes…
- Voiding cystourethrography A procedure done to examine the bladder and urethra while the bladder fills and empties. A radiopaque liquid…
- Dipper A person in whom there is the normal nocturnal fall (dip) in blood pressure. The opposite of a dipper is a…
- Avian tuberculosis See: Tuberculosis, avian
- Menstruation, cessation of Menstruation, cessation of: Menstruation ends naturally in middle age with the onset of the menopause. It can…
- Post-exposure prophylaxis A treatment administered following exposure to a harmful agent which attempts to block or reduce injury or…
- Cachexia Physical wasting with loss of weight and muscle mass caused by disease. Patients with advanced cancer, AIDS…
- Hetero- Chromosomal material that is darkly staining and tightly coiled throughout the cell cycle and that is, for…