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).
Comedones
The plural of comedo, the primary sign of acne, consisting of a dilated (widened) hair follicle filled with keratin squamae (skin debris), bacteria, and sebum (oil). Comedones may be closed or open. A closed comedo has an obstructed…
Read the definitionRandom terms
Show more- Disease, Hodgkin (Hodgkin lymphoma) A disease of the lymph nodes named after the English physician Thomas Hodgkin (1798-1866) who discovered it…
- Humor In medicine, humor refers to a fluid (or semifluid) substance. Thus, the aqueous humor is the fluid normally…
- Bulimia susceptibility gene A gene that determines the susceptibility to developing bulimia, one disorder in the spectrum of eating…
- Exacerbate To make worse. For example, smoking may exacerbate systemic lupus erythematosus
- Suboxone Brand name for buprenorphine in combination with naloxone
- Complete syndactyly A condition in which singers or toes are completely joined together, with the connection extending from the…
- Hospital-acquired infection An infection caught while hospitalized. The medical term for a hospital-acquired infection is 'nosocomial.'…
- Expiration date The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful…
- Malnutrition A term used to refer to any condition in which the body does not receive enough nutrients for proper…
- Polyphenol A kind of chemical that (at least in theory) may protect against some common health problems and possibly…
- Irrigate To wash out as, for example, a wound to clean it.
- Directed DNA sequencing Successively sequencing DNA from adjacent stretches of a chromosome