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).
ACE (angiotensin converting enzyme)
The angiotensins are peptides (substances smaller than proteins) that act as vasoconstricting agents (causing blood vessels to narrow). Narrowing the diameter of the blood vessels sends up the blood pressure. ACE converts angiotensin to…
Read the definitionRandom terms
Show more- Hypertonia Increased tightness of muscle tone. Untreated hypertonia can lead to loss of function and deformity…
- STD Sexually transmitted disease
- Coccygeal vertebrae The coccyx, the small tail-like bone at the bottom of the spine near the anus, is made up of 3-5 (average of…
- Genitalia, male internal See: Male internal genitalia
- Ethylene oxide A chemical widely used in the health care industry to sterilize medical devices and also used to make other…
- Cardioplegia Paralysis of the heart, as may be done electively in stopping the heart during cardiac surgery. Cardioplegia…
- Radiation toxicity See: Acute radiation syndrome
- Postulates, Koch's In 1890 the German physician and bacteriologist Robert Koch set out his celebrated criteria for judging…
- UAL UAL stands for ultrasonic-assisted liposuction. Liposuction involves the surgical suctioning of fat deposits…
- OCD 1. Obsessive-compulsive disorder; 2. Osteochondritis dissecans.
- Hejama Alternate Arabic term for cupping. The preferred Arabic term for this practice is al-hijamah. See: Cupping
- Syndrome, trisomy 13 Condition with three rather than the normal two chromosomes #13. Children born with this syndrome have…