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).
Window, round
The trachea, a tube-like portion of the respiratory (breathing) tract that connects the larynx (the voicebox) with the bronchial parts of the lungs. Each time we inhale (breathe in), air goes into our nose or mouth, then through the…
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Show more- BPH A balance disorder that results in the sudden onset of dizziness, spinning, or vertigo when moving the head.
- Stricture An abnormal narrowing of a body passage, especially a tube or a canal. The stricture may be due, for example…
- Chromatography, gas (GC) A type of automated chromatography (a technique used to separate mixtures of substances) in which the mixture…
- Vertebra, first cervical The first cervical (neck) vertebra is called the atlas. It supports the head. The atlas bone is named for the…
- Jugular vein, external The more superficial of the two jugular veins in the neck that drain blood from the head, brain, face and…
- Geriatric medicine The branch of medicine concerned with the diagnosis, treatment and prevention of disease in older people and…
- Ringworm of the nails Ringworm of the nails: The most common fungus infection of the nails, also called onychomycosis…
- Cancer, prostatic Cancer of the gland (prostate) that produces some of the components of semen fluid. The second leading cause…
- Photic sneeze reflex A disorder, also known as the achoo syndrome, characterized by nearly uncontrollable paroxysms of sneezing…
- NIOSH The National Institute for Occupational Safety and Health, a US Federal agency responsible for conducting…
- Clostridium perfringens A type of bacteria that is the most common agent of gas gangrene and can also cause food poisoning as well as…
- An- Prefix very much employed in medicine and all of the health sciences, indicating 'not, without, or -less.'…