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).
Ammonia
A colorless gas with a very sharp odor. Made both by humans and by nature, ammonia dissolves easily in water and evaporates quickly. Liquid ammonia is found in many household cleaners. Ammonia is irritating to the skin, eyes, nose, throat…
Read the definitionRandom terms
Show more- Nocturia Excessive urinating at night.
- Scleredema A dermatologic disorder characterized by hardening and thickening of the skin, typically over the face, neck…
- Clinical research trials Clinical research trials: Trials to evaluate the effectiveness and safety of medications or medical devices…
- Plague, Great The 'Great Plague' that swept London in 1665 was probably not really the plague but rather typhus. The plague…
- WDWN Abbreviation for 'well developed, well nourished' used by doctors as shorthand when jotting down the results…
- Triphalangeal Having three phalanges in a digit normally composed of only two
- Speculum, vaginal An instrument used to widen the opening of the vagina so that the cervix is more easily visible. 'Speculum'…
- Rat, cotton See: Cotton rat
- Genetic testing Tests done for clinical genetic purposes. Genetic tests may be done for diverse purposes pertaining to…
- Paraphilia Paraphilia: One of several complex psychiatric disorders that are manifested as deviant sexual behavior. For…
- Thymus gland See: Thymus
- Solar keratosis Synonymous with actinic keratosis. See: Keratosis, actinic