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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Dysplastic nevi
Atypical moles whose appearance is different from that of a common ordinary mole. Dysplastic nevi tend to be larger than ordinary moles, have more irregular borders, are often mixed in color and present in large numbers. A dysplastic nevus…
Read the definitionRandom terms
Show more- Gene transfer The insertion of unrelated genetic information in the form of DNA into cells. There are different reasons to…
- Hearing screening test, newborn Screening of the newborn baby's ability to hear. Newborn screening of hearing is done with automated auditory…
- CREST syndrome A limited form of scleroderma, a disease of connective tissue with the formation of scar tissue (fibrosis) in…
- Virus, xenotropic A virus that can grow in the cells of a species foreign to the normal host species, a species different from…
- Conn syndrome Overproduction of the hormone aldosterone (pronounced al-do-ster-one) by a tumor that contains tissue…
- Horror autotoxicus Literally, the horror of self-toxicity. A term coined by the great German bacteriologist and immunologist…
- Endocannabinoid A marijuana-like substance. 'Marijuana-like substances (endocannabinoids)... act at specific receptors on the…
- Claudication, intermittent Claudication, intermittent: An aching, crampy, tired, and sometimes burning pain in the legs that comes and…
- Perchloric acid See: Perchlorate
- Esophageal stricture, chronic A longstanding narrowing or closure of the normal opening of the swallowing tube leading to the stomach…
- Proctology A medical specialty that deals with disorders of the rectum and anus
- Coccyx bone The small tail-like bone at the bottom of the spine very near to the anus. The coccyx is made up of 3-5…