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).
Coronary arteries
The vessels that supply the heart muscle with blood rich in oxygen. They are called the coronary arteries because they encircle the heart in the manner of a crown. The word 'coronary' comes from the Latin 'corona' and Greek 'koron' meaning…
Read the definitionRandom terms
Show more- Lichenification Thick, leathery skin, usually the result of constant scratching and rubbing. With prolonged rubbing or…
- Microscopy The examination of minute objects by means of a microscope, an instrument which provides an enlarged image of…
- Melanoma, malignant See: Melanoma
- H. sapiens See: Homo sapiens
- Strep Very commonly used shortened form of Streptococcus, a very common and important group of bacteria. See…
- Double helix The structure of DNA with the two strands of DNA spiraling about one other. The double helix looks something…
- Adhesive capsulitis Constant severe limitation of the range of motion of the shoulder due to scarring around the shoulder joint…
- Penis The external male sex organ used to copulate and ejaculate semen and to convey urine outside the body. In…
- Lower leg The lower leg is the bottom segment of the leg: the part below the knee. The lower leg contains two long…
- Mutation, null A mutation (a change) in a gene that leads to its not being transcribed into RNA and/or translated into a…
- Pyelonephritis Bacterial infection of the kidney. Pyelonephritis can be acute (sudden) or chronic (slow, subtle, and…
- CRAC1 Colorectal adenoma and carcinoma 1. Also called hereditary mixed polyposis syndrome. See: Hereditary mixed…