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).
Activated charcoal
Charcoal that has been heated to increase its absorptive capacity. Activated charcoal is sold as an over-the-counter (OTC) product to help relieve intestinal gas. It is also used to absorb poisons (as in gas mask filters), neutralize…
Read the definitionRandom terms
Show more- Achondroplasia Our Achondroplasia Main Article provides a comprehensive look at the who, what, when and how of…
- Nerve, second cranial Also known as the optic nerve. This nerve connects the eye to the brain and carries the impulses formed by…
- Acathisia See: Akathisia
- Rate, sedimentation A blood test that detects and monitors inflammation in the body. It measures the rate at which red blood…
- Diastole The time period when the heart is in a state of relaxation and dilatation (expansion). The final letter in…
- Stone, kidney Kidney stone: A stone in the kidney (or lower down in the urinary tract). Kidney stones are a common cause of…
- Empiric risk The chance that a disease will occur in a family based upon experience (past history, medical records, etc.)…
- Amino acid, nonessential An amino acid that can be made by humans and so is not essential to the human diet. There are 11 nonessential…
- Metered-dose inhaler Abbreviated MDI. A device that delivers a measured amount of medication as a mist the patient can inhale. A…
- LQTS The long QT syndrome. See Long QT syndrome
- Abnormal Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth…
- Neuroradiologist A radiologist who specializes in the use of radioactive substances, x-rays and scanning devices for the…