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).
SGA
Small for gestational age. SGA infants weigh 2500 g or less at birth and are considered to have intrauterine growth retardation (IUGR), given their gestational age. By contrast, an infant may weighs 2500 g or less simply because of…
Read the definitionRandom terms
Show more- Fuchs endothelial corneal dystrophy See: Corneal dystrophy, Fuchs endothelial
- Eye bank A place to store corneas (the clear 'front window' of the eye) for use in future keratoplasty (surgery to…
- Disease, polycystic kidney See Polycystic kidney disease
- Fear of crossing streets Abnormal and persistent fear of crossing streets, highways and other thoroughfares; fear of thoroughfares…
- Astrocytoma A tumor that begins in the brain or spinal cord in small, star-shaped cells called astrocytes. The location…
- Legg disease See Legg-Calve-Perthes disease
- Alpha-defensin See: Defensin
- Milk allergy, cow Casein and whey are the two major proteins of human milk and most milk-based formulas. Some (less than 8% of)…
- Akinetic mutism A state in which a person is unspeaking (mute) and unmoving (akinetic). A textbook on clinical neurology…
- Exfoliation syndrome See: Pseudoexfoliation syndrome
- Y-linked A gene on the Y chromosome. A Y-linked gene is by necessity passed from father to son, since the Y chromosome…
- Syndrome, autoimmune polyendocrinopathy A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…