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).
Double helix
The structure of DNA with the two strands of DNA spiraling about one other. The double helix looks something like an immensely long ladder twisted into a helix, or coil. The sides of the 'ladder' are formed by a backbone of sugar and…
Read the definitionRandom terms
Show more- Anlagen The plural of anlage. See: Anlage
- Kiddie-cam See: Kiddie cam
- Sinus, cavernous A large channel of venous blood creating a 'sinus' cavity bordered by the sphenoid bone and the temporal bone…
- Poikiloderma atrophicans with cataract Better known as the Rothmund-Thomson syndrome, this is an hereditary disease characterized by progressive…
- Aneurysm, arterial An aneurysm involving an artery. As opposed to a venous aneurysm or a cardiac aneurysm. An aneurysm is a…
- Abscess, breast See: Breast abscess. see also: Breast infection; Mastitis
- RNA, messenger A class of RNA that is the template upon which polypeptides are put together. Abbreviated mRNA
- Transplantation, peripheral blood stem cell A new technique in which stem cells are obtained from a patient's blood and used in bone marrow…
- Petit mal A form of epilepsy with very brief, unannounced lapses in consciousness. A petit mal seizure involves a brief…
- Replication A turning back, repetition, duplication, reproduction
- National Heart, Lung, and Blood Institute (NHLBI) One of the National Institutes of Health in the U.S., the NHLBI's mission is to 'provide leadership for a…
- Hemophilia B Hemophilia due to deficiency of coagulation factor IX in the blood which results in prolonged oozing after…