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).
Archaea
A unique group of microorganisms classified as bacteria (Archaeobacteria) but genetically and metabolically different from all other known bacteria. They appear to be living fossils, the survivors of an ancient group of organisms that…
Read the definitionRandom terms
Show more- Parkinson disease gene A gene involved in the causation of Parkinson disease. There are a number of different autosomal dominant and…
- Heterosexuality Sexuality directed toward someone of the opposite sex
- Fear of going to bed An abnormal and persistent fear of going to bed. Sufferers of this fear experience anxiety even though they…
- Danders See: Dander
- Hearing instrument A synonym for a hearing aid that gained popularity to distinguish the device from AIDS. See: Hearing aid
- Shy-Drager syndrome A mysterious progressive disorder of the central and sympathetic nervous systems, also called multiple system…
- Enterospasm A painful, intense contraction of the intestine
- Deficiency, alpha-galactosidase A See: Fabry disease
- Cord, umbilical See: Umbilical cord
- Smell See Olfaction
- Antidiuretic hormone (ADH) A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after…
- Hashimoto disease See: Hashimoto thyroiditis