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).
XYY syndrome
A chromosomal disorder that affects males only, caused by the presence of an extra Y chromosome. Symptoms may include increased height, speech delays, learning disabilities, mild to moderate mental retardation, and behavioral disturbance…
Read the definitionRandom terms
Show more- Eyelids, adult ptosis of the Drooping of the upper eyelids in adults, most commonly due to separation of the tendon of the lid-lifting…
- Syncope, situational The temporary loss of consciousness in a particular kind of situation. The situations that trigger this…
- Crossover study A type of clinical trial in which the study subjects receive each treatment in a random order. With this type…
- Tick bite A bite from a bloodsucking, parasitic insect that punctures the skin with a sharp beak. The tic burrows into…
- Duplication Part of a chromosome in duplicate, a particular kind of mutation (change) involving the production of one or…
- Triptan A class of drugs introduced in the 1990s for the treatment of migraine that act as agonists for…
- Salicylic acid A substance obtained from plants (white willow back and wintergreen leaves) and also synthesized which is…
- Anemic Relating to anemia, the condition of having less than the normal number of red blood cells or less than the…
- Deficiency, UROD See: UROD deficiency
- De Quervain's tenosynovitis De Quervain's tenosynovitis: De Quervain's tenosynovitis is inflammation of tendons on the side of the wrist…
- Syndrome, renal, with hemorrhagic fever A number of diseases, also known as hemorrhagic fever, characterized by an abrupt onset of high fever and…
- Ossicle Any small bone, such as the tiny bones within the human ear