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).
Epithelial
Relating to the epithelium, the outside layer of cells that covers all the free, open surfaces of the body including the skin, and mucous membranes that communicate with the outside of the body
Read the definitionRandom terms
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- Aortic stenosis Aortic stenosis: Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the…
- Pancreas divisum Pancreas divisum: Pancreas divisum is a common congenital anomaly (an anomaly that is present at birth) of…
- Smoking, involuntary The involuntary inhaling of environmental tobacco smoke (ETS) by someone who is not smoking. See: ETS
- Goiter, diffuse toxic Graves disease, the most common cause of hyperthyroidism (overactivity of the thyroid gland), with…
- Acid deposition A complex chemical and atmospheric phenomenon that occurs when emissions of sulfur and nitrogen compounds and…
- CDC The Centers for Disease Control and Prevention, the US agency charged with tracking and investigating public…
- Urticaria pigmentosa The most common form of mastocytosis consisting of small aggregations of mast cells within characteristic…
- Off-pump surgery A technique for heart surgery designed to avoid use of the heart-lung machine. The technique permits surgery…
- Wart Wart: A local growth of the outer layer of the skin (the epidermis) caused by a virus. The virus of warts (a…
- Therapy, testosterone replacement The practice of giving testosterone to treat conditions in which the testes do not produce enough…
- Facioscapulohumeral muscular dystrophy A form of muscular dystrophy that typically begins before age 20 with slowly progressive weakness of the…