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).
Small cell lung cancer
A type of lung cancer in which the cells appear small and round under the microscope. Also called oat cell lung cancer
Read the definitionRandom terms
Show more- Spasm, nictitating Spasm of the eyelid with continuous winking. To nictitiate is to wink. 'Nictitate' and the older verb…
- Carditis Inflammation of the heart
- Sweat gland The sweat (sudoriferous) glands are small tubular structures situated within and under the skin (in the…
- Pharyngitis Inflammation of the pharynx (the hollow tube in the back of the throat about 5 inches long that starts behind…
- Amnesic aphasia See Anomia.
- Epiphenomenon 1. An additional symptom or condition that appears during the course of a disease. A doctor might ask if you…
- Hybridization, in situ The use of a DNA or RNA probe to detect the complementary sequence. In situ hybridization is like all nucleic…
- Mydriasis Dilation of the pupils induced by eyedrops. The opposite of miosis.
- West Nile encephalitis West Nile encephalitis: A febrile disease caused by the West Nile virus that is transmitted from birds to the…
- Neuroma, acoustic A benign tumor that may develop on the hearing and balance nerves near the inner ear. The tumor results from…
- Tuberoeruptive xanthoma See: Eruptive xanthoma
- Spasm, coronary artery See: Coronary artery spasm