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).
Hyperpigmentation
Dark spots on the skin. Hyperpigmentation is primarily a cosmetic concern that can be covered with make-up, although in some cases (such as the cafe au lait spots associated with neurofibromatosis) it can be a sign of an underlying medical…
Read the definitionRandom terms
Show more- Immunity, innate See: Innate immunity
- Symptomatic 1 With symptoms, as a symptomatic infection. 2 Characteristic, as behavior symptomatic of Huntington disease…
- Quaque die (on prescription) Seen on a prescription, qd (or, written with periods, q.d.) means one a day (from the Latin quaque die). The…
- Caulophyllum thalictroides Blue cohosh
- Wolfram syndrome A genetic neurodegenerative disease that leads to many different abnormalities including diabetes insipidus…
- Cystitis in children Bladder infection in children. See: Urinary tract infection in children
- Mediterranean anemia Better known today as thalassemia (or as beta thalassemia or thalassemia major). The clinical picture of this…
- Priapism Abnormally persistent erection of the penis in the absence of sexual desire. Priapism can occur in persons…
- Affect The emotional tone a person expresses. A person's affect may be appropriate or inappropriate to the…
- Fragile X tremor/ataxia syndrome Abbreviated FXTAS (pronounced fax-tass). A progressive neurological disorder that strikes men over age 50 and…
- Inversion, chromosome A chromosome segment is clipped out, turned upside down and reinserted back into the chromosome. A chromosome…
- Hyperpigmentation Dark spots on the skin. Hyperpigmentation is primarily a cosmetic concern that can be covered with make-up…