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).
Beta-agonist
A bronchodilator medicine that opens the airways by relaxing the muscles around the airways that may tighten during an asthma attack or in COPD (chronic obstructive pulmonary disease). Beta-agonists can be administered by inhalers or…
Read the definitionRandom terms
Show more- First do no harm Slogan used in medicine often in the Latin wording 'primum non nocere,' a fundamental medical precept of…
- XY The most frequent sex chromosome complement in human males
- MCPH1 Microcephalin 1
- Hydrocephalus Hydrocephalus: Hydrocephalus is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the…
- Father (1) The male parent. (2) One who originates. For example, 'Wilhelm Roentgen is considered the father of…
- Baker cyst Baker cyst: A swelling in the space behind the knee (the popliteal space) composed of a membrane-lined sac…
- Urate A salt derived from uric acid. When the body cannot metabolize uric acid properly, urates can build up in…
- Post Short for postmortem examination (an autopsy)
- Jacksonian epilepsy See: Epilepsy, Jacksonian
- Effective dose The dose of a drug that will achieve the desired effect
- Platelet count The calculated number of platelets in a volume of blood, usually expressed as platelets per cubic millimeter…
- Single-blind Term used to described a study in which either the investigator or the participant, but not both of them, is…