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).
Proctitis
Inflammation of the rectum. This may be due to a considerable number of causes, among them infectious agents and ulcerative colitis. Infectious proctitis is often due to agents such as Chlamydia trachomatis, Neisseria gonorrheae (the…
Read the definitionRandom terms
Show more- Blunted affect See: Flat affect
- Disease, sleeping See: Sleeping disease
- Adhesion The union of two opposing tissue surfaces (often in reference to the sides of a wound). Also refers to scar…
- Baby walker A device that allows a baby to move about in a half-seated, half-upright position. A 'walker' may…
- Familial amyotrophic lateral sclerosis Amyotrophic lateral sclerosis (ALS) in which there a family history of the disease. Familial ALS constitutes…
- Care, ambulatory See: Ambulatory care
- Tympano- Prefix indicating a relationship to the ear drum (tympanum). For example, tympanometry is a test that…
- Placenta accreta The abnormal adherence of the chorionic villi (vascular fingers of the chorion, a part of the placenta) to…
- Molar In dentistry, a molar is one of the posterior teeth well adapted to grinding, in keeping with its origin from…
- Meal moth A moth that infests both stored grain and cereal products. The moth larvae cause damage in corn meal…
- Tooth root The lower two-thirds of a tooth. The roots are normally buried in bone, and serve to anchor the tooth in…
- Connective tissue disease, heritable See: Heritable connective tissue disease