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).
Left atrium
The upper right chamber of the heart. The left atrium receives oxygenated blood from the lungs and pumps it down into the left ventricle which delivers it to the body. NTER>
Read the definitionRandom terms
Show more- Alarm clock headache A relatively rare form of headache in which the patient is awakened from sleep at the same time every night…
- Hemodialysis catheter See: Catheter, hemodialysis
- Anonymous testing Testing in which no name is used -- there is total anonymity -- to identify the person tested. For example…
- Biopsy, skin See: Skin biopsy
- Fear of thunder An abnormal and persistent fear of thunder that causes undue anxiety even though sufferers realize that…
- ARB Angiotensin II receptor blocker
- Johnnies Plural of johnny
- Olfactory apparatus The entire system needed to have a sense of smell. This system involves at least 1,000 genes for the…
- Ipsilateral On the same side. A study of 'ipsilateral breast tumor recurrence following lumpectomy and radiation therapy'…
- Retinol >Beta carotene: An antioxidant which protects cells against oxidation damage that can lead to cancer. Beta…
- Reaven syndrome See: Metabolic syndrome
- Xanthoma, eruptive See: Eruptive xanthoma