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).
Coloboma
A congenital malformation (birth defect) in which part of the eye does not form due to failure of fusion of an embryonic feature called the intraocular fissure. The resultant coloboma can be likened to a missing slice from a pie that may…
Read the definitionRandom terms
Show more- Big toe sign An important neurologic examination based upon what the big toe (and other toes) do when the sole of the foot…
- Anatomy, gross Better known among medical students simply as 'gross', gross anatomy is the study of the form of structures…
- Hyperhidrosis, axillary See: Axillary hyperhidrosis
- Oxygen A colorless, odorless and tasteless gas that makes up about 20% of the air we breathe (and at least half the…
- Prognostic 1. (adjective) In medicine, relating to the prognosis of a disease. For example, a favorable prognostic…
- Bathophobia An abnormal and persistent fear of depths. Sufferers from bathophobia experience anxiety even though they…
- PCO disease >Irregular or no periods >Acne >Obesity, and >Excess hair growth. All women with PCO have irregular or no…
- Spastic dysphonia See: Spasmodic dysphonia
- Amini, Fariborz Iranian-born American psychiatrist (1930-2004), at the University of California, San Francisco (UCSF), known…
- Hydrocephalus ex-vacuo Hydrocephalus ex-vacuo: What is termed 'hydrocephalus ex-vacuo' occurs when there is damage to the brain…
- Long arm of a chromosome The long arm of a chromosome is termed the q arm. All human chromosomes have 2 arms, the p (short) arm and…
- Pneumoconiosis, coal miner's See: Black lung disease