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).
Antibiotic
A drug used to treat infections caused by bacteria and other microorganisms. Originally, an antibiotic was a substance produced by one microorganism that selectively inhibits the growth of another. Synthetic antibiotics, usually chemically…
Read the definitionRandom terms
Show more- Narcan Brand name for naloxone
- Aristolochia fangchi A Chinese herb that is injurious to the kidney and is also associated with an increased risk of cancer of the…
- Choanal atresia Blockage of the choana, the passageway from the back of one side of the nose to the throat. The choana is…
- Sylvius, aqueduct of A canal that communicates between the third and fourth ventricles in a system of four communicating cavities…
- Working memory Short-term (recent) memory. Working memory is a system for temporarily storing and managing the information…
- Juxtaspinal Near the spinal column. The prefix 'juxta-' comes from the Latin preposition meaning near, nearby, close…
- Dendritic Referring to a dendrite, a short arm-like protuberance from a nerve cell (a neuron). Dendrites from neurons…
- Hyponatremia An abnormally low concentration of sodium in the blood. Too little sodium can cause cells to malfunction, and…
- Lipid storage diseases A series of disorders due to inborn errors in lipid metabolism resulting in the abnormal accumulation of…
- Date, expiration The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful…
- Adult T-cell leukemia/lymphoma See: Adult T-cell leukemia
- PH A measure of the acidity or alkalinity of a fluid. The pH of any fluid is the measure of its hydrogen ion…