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).
Microduplication 22q11.2 syndrome
A syndrome due to duplication of a tiny part of chromosome band 22q11.2. Features of the syndrome include the appearance of widely spaced eyes and superior placement of eyebrows; downslanting palpebral fissures (eye slits); mild…
Read the definitionRandom terms
Show more- CT scan CT scan: Computerized tomography scan. Pictures of structures within the body created by a computer that…
- Reportable disease A disease that must be reported to federal, state, or local health officials when diagnosed. Reportable…
- Disease, Hodgkin (Hodgkin lymphoma) A disease of the lymph nodes named after the English physician Thomas Hodgkin (1798-1866) who discovered it…
- Hyperuricemia Abnormally elevated blood level of uric acid. Uric acid is a breakdown product of purines that are part of…
- Adductor muscle Any muscle that pulls a body part toward the midline. For example, the adductor muscles of the legs pull the…
- Mitochondrial cytopathy, Kearns-Sayre type See: Kearns-Sayre syndrome
- Sympathetic nervous system A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise…
- Pathogen An agent of disease. A disease producer. The term pathogen most commonly is used to refer to infectious…
- Exanthem A rash. The word 'exanthem' comes from the Greek 'exanthema' which means 'a breaking out.' 'Anthos' in Greek…
- Post Short for postmortem examination (an autopsy)
- Bietti crystalline dystrophy A genetic eye disease that leads to progressive night blindness and visual field constriction and is…
- BPH A balance disorder that results in the sudden onset of dizziness, spinning, or vertigo when moving the head.