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).
Sleep paralysis
A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move for a few minutes, most often upon falling asleep or waking up. Sleep paralysis is due to an ill-timed disconnection between the…
Read the definitionRandom terms
Show more- Coronary artery spasm A spasm (a sudden constriction) of one of the coronary arteries depriving the (myocardium (the heart muscle)…
- Carcinoma of the tongue See: Tongue cancer
- Subcutaneous Under the skin. 'Subcutaneous' implies just under the skin. With a subcutaneous injection, a needle is…
- Syphilis, congenital The third stage of syphilis, in which the syphilis spirochetes infect the brain and other organs of the body…
- Anhidrosis Not sweating. From the Greek an- meaning a lack of + hidros meaning sweat = lack of sweat. The inability to…
- Cylindroma A benign tumor of skin adnexa such as the sweat gland, arising as a nodule on the scalp and, less often, the…
- Carbon monoxide on houseboats See: Houseboat carbon monoxide poisoning
- UAA A triplet consisting of uracil, adenine, adenine, in that order, that acts as a stop codon in messenger RNA…
- Lentigo A type of freckle that is a small tan, brown, or black spot which tends to be darker than the usual…
- Malariologist Someone who is versed in or engaged in the study of malaria. 'Independent malariologists believe it kills two…
- Plexus, brachial See: Brachial plexus
- Syndrome, Gelineau A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Named for a French…