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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Valve, tricuspid
One of the four heart valves, the tricuspid valve is the first one that blood encounters as it enters the heart. The tricuspid valve is situated between the right atrium and right ventricle and allows blood to flow only from the atrium…
Read the definitionRandom terms
Show more- Poly- 1) Prefix meaning much or many For example, polycystic means characterized by many cysts. 2) Short form for…
- Dystrophy, cone A disease of the cones, the specialized light-sensitive cells that act as photoreceptors in the retina of the…
- Cat scratch fever A bacterial infection due to a cat scratch seen most often today in people with HIV. The disease…
- Nerve, pinched See: Nerve compression
- Isoflavone A type of plant estrogen (phytoestrogen) found chiefly in soybeans
- Sore 1. (adjective) A popular term for painful. I have sore fingers from typing dictionary terms. She has a sore…
- Prograf Brand name of tacrolimus. See: Tacrolimus
- Gingivitis, acute membranous This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Lancet, The A weekly medical journal headquartered in London. Published uninterruptedly and with the same title since…
- CME Stands for Continuing Medical Education. CME programs are intended, literally, to continue the medical…
- Transmission, vertical Transmission of a disease-causing agent (a pathogen) vertically from mother directly to baby during the…
- Study, gastric emptying A gastric emptying study evaluates the emptying of food from the stomach. For a gastric emptying study, a…