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.
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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).
Ulcer, aphthous
Ulcer, aphthous: A small sensitive painful ulcer crater in the lining of the mouth. Commonly called a canker sore. Aphthous ulcers are one of the most common problems that occur in the mouth. About 20% of the population (1 in 5 people)…
Read the definitionRandom terms
Show more- Phenotype The appearance of an individual, which results from the interaction of the person's genetic makeup and his or…
- Lining, uterine The inner layer of the uterus (womb); the cells that line the womb; anatomically termed the endometrium. This…
- Intraepithelial Within the layer of cells that forms the surface or lining of an organ
- Ubiquitination The 'kiss of death' process for a protein. In ubiquitination, a protein is inactivated by attaching ubiquitin…
- Therapy, maintenance See: Maintenance therapy
- RNA virus A virus in which the genetic material is RNA. The RNA may be either double- or single-stranded. There are 6…
- Tenormin See: Atenolol
- Radiotherapy The treatment of disease with ionizing radiation. Also called radiation therapy. In radiotherapy, high-energy…
- Serrated Finely notched like the cutting edge of a saw. The serratus muscles take their name from their serrated…
- Contractions, Braxton Hicks Irregular contractions of the womb (the uterus) occurring towards the middle of pregnancy in the first…
- Glaucoma, low tension See: Glaucoma, normal tension
- Hereditary mixed polyposis syndrome (HMPS) A cancer family syndrome characterized by the development of a variety of different types of polyps in…