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).
Hypercapnia
More than the normal level of carbon dioxide in the blood. Hypercapnia is as opposed to hypocapnia and acapnia. The origin of the suffix '-capnia' is curious. It comes from the Greek 'kapnos' referring to carbon dioxide which is a…
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Show more- Necrotizing gingivitis This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Pontiac fever A flu-like illness caused by the bacterium Legionella pneumophila contracted by breathing mist that comes…
- Epithelial carcinoma Cancer that begins in the cells that line an organ.
- Niacin deficiency See: Pellagra
- Hematoma, epidural See: Epidural hematoma
- A.c. Abbreviation on a prescription meaning before meals; from the Latin 'ante cibum', before meals. This is one…
- Gland, sweat The sweat (sudoriferous) glands are small tubular structures situated within and under the skin (in the…
- QT syndrome, long An inherited defect in the heart rhythm. In the US alone, it is estimated that 4,000 children and young…
- C (cytosine) C stands for cytosine, a DNA nucleotide that which is one member of the base pair in DNA consisting of…
- Stiff lung See: ARDS
- House officer A resident physician and surgeon of a hospital (the 'house') who is receives further training, usually in a…
- Microvascular surgery Surgery on very small blood vessels such as those only 3 to 5 millimeters in diameter. Microvascular surgery…