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).
Vein, pulmonary
One of four vessels that carry aerated blood from the lungs to the left atrium of the heart. (The four are the right and left superior and inferior pulmonary veins). The pulmonary veins are the only veins that carry bright red oxygenated…
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Show more- Human immunodeficiency virus Human immunodeficiency virus: HIV, the cause of AIDS. HIV has also been called the human lymphotropic virus…
- Amoxil See: Amoxicillin
- Atropine A drug obtained from belladonna that is administered via injection, eye drops, or in oral form to relax…
- Stroke volume The amount of blood pumped by the left ventricle of the heart in one contraction. The stroke volume is not…
- Dementia, MELAS Dementia, MELAS: MELAS is the acronym for Mitochondrial Encephalopathy, Lactic Acidosis, and Strokelike…
- Osteochondritis dissecans Osteochondritis dissecans: A condition in which a fragment of bone in a joint is deprived of blood and…
- Helicase An enzyme that unwinds double-strand DNA into two single DNA strands
- Deafness-ichthyosis-keratitis syndrome See Keratitis-ichthyosis-deafness syndrome
- Amnioreduction The removal of large volumes of amniotic fluid by amniocentesis
- Nucleic acid >DNA (deoxyribonucleic acid) which contains the hereditary information in humans and >RNA (ribonucleic acid)…
- Cranial nerve III The third cranial nerve is the oculomotor nerve. The cranial nerves emerge from or enter the skull (the…
- Dysphonia See: Spasmodic dysphonia.