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).
Pacemaker
Pacemaker: A system that sends electrical impulses to the heart in order to set the heart rhythm. The pacemaker can be the normal 'natural' pacemaker of the heart or it can be an electronic device. The natural pacemaker of the heart is the…
Read the definitionRandom terms
Show more- Polycyclic aromatic hydrocarbon Abbreviated PAH. A hydrocarbon (a molecule made up of hydrogen and carbon) containing two or more closed…
- Hypothyroidism Deficiency ofroid hormone which is normally made by the thyroid gland which is located in the front of the…
- Mastectomy A general term for removal of the breast, usually to remove cancerous tissue. The operation can be done in a…
- Neurosyphilis Neurological complications in the third (tertiary) and final phase of syphilis, which involve the central…
- DSM Abbreviation for the 'Diagnostic and Statistical Manual of Mental Disorders,' a comprehensive classification…
- Desmoplastic reaction This term refers to the growth of fibrous or connective tissue. Some tumors elicit a desmoplastic reaction…
- Pelizaeus-Merzbacher disease A disease that is virtually identical to Pelizaeus-Merzbacher disease (PMD) but without a mutation in the…
- CPEO with myopathy See: Kearns-Sayre syndrome
- Cancer, pancreas See: Pancreatic cancer
- Expulsion, stage of The part of labor from the full dilatation of the cervix until the baby is completely out of the birth canal…
- Auditory brainstem response test See: ABR test
- Warburg's yellow enzyme A key respiratory enzyme discovered by the German biochemist Otto Heinrich Warburg (1883-1970), a pioneer in…