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).
Acrophobia
An abnormally excessive and persistent fear of heights. Sufferers experience severe anxiety even though they usually realize that, as a rule, heights pose no real threat to them. Derived from the Greek 'acron', height + 'phobos', fear.
Read the definitionRandom terms
Show more- Ear, outer There are three sections of the ear. They are the outer ear, the middle ear, and the inner ear. The outer ear…
- Memory span The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of…
- Endarterectomy An operation to clean out an artery and restore normal blood flow through the artery. An endarterectomy is…
- Mean cell volume A standard part of the complete blood count, the mean cell volume (MCV) is the average volume of a red blood…
- Aldrex Trade name of the insecticide aldrin. See: Aldrin and dieldrin
- Ear tag Common minor anomaly, a rudimentary tag of ear tissue, often containing a core cartilage, usually located…
- Perfusion A chemotherapy technique that may be used when melanoma occurs on an arm or leg. The flow of blood to and…
- Chorionic villus sampling Chorionic villus sampling: A procedure for first-trimester prenatal diagnosis. Chorionic villus sampling may…
- PA-C Physician Assistant - Certified
- Pinguicula Alternate spelling of pinguecula. Irrespective of spelling, the accent is on the second syllable which is…
- Beaded vitreous type Stickler syndrome Stickler syndrome, type II. See: Stickler syndrome
- Polio vaccine, killed See: Polio vaccine, inactivated