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).
ETS
Environmental tobacco smoke. Smoke generated from the sidestream (the burning end) of a cigarette, pipe or cigar and the exhaled mainstream smoke (the smoke that is puffed out by smokers) of cigarettes, pipes, and cigars. In 1992, the US…
Read the definitionRandom terms
Show more- Trigger Something that either sets off a disease in people who are genetically predisposed to developing the disease…
- Colostomy, a patient's perspective For an excellent article about colostomy from a patient's viewpoint, please see Colostomy - A Patient's…
- Mesenteric artery One of the arteries which arises from the abdominal portion of the aorta and distributes blood to most of the…
- Placental dystocia Difficulty delivering the placenta (the afterbirth). Dystocia comes from the Greek 'dys' meaning 'difficult…
- Branchial cyst Branchial cyst: Also called a branchial cleft cyst, this is a cavity that is a remnant from embryologic…
- Indifferent gonad In embryonic life, the gonad in males and females is initially identical. This gonad is said to be…
- DEA Every prescription written in the United States bears a DEA number, that of the prescribing doctor, the DEA…
- Mitochondria Normal structures responsible for energy production in cells. Mitochondria are located in the cytoplasm…
- Gray A unit of absorbed radiation equal to the dose of one joule of energy absorbed per kilogram of matter, or 100…
- Wet brain See: Cerebral edema
- Sleep-disordered breathing A condition characterized by repeated episodes of hypopnea (underbreathing) and apnea (not breathing) during…
- Intensive care See critical care