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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Commensal
1. Living in a relationship in which one organism derives food or other benefits from another organism without hurting or helping it. Commensal bacteria are part of the normal flora in the mouth.2. An intimate relationship. The Norway rat…
Read the definitionRandom terms
Show more- Cup, optic The white, cup-like area in the center of the optic disc. The optic disk is the circular area at the back of…
- Placental bone morphogenetic protein See: MIC-1
- Pancreatitis Pancreatitis: Inflammation of the pancreas. Of the many diverse causes of pancreatitis, the most common are…
- Familial Parkinson disease type 7 A familial form of Parkinson disease inherited in an autosomal recessive manner due to mutation in the DJ1…
- Diarrhea, Brainerd A syndrome characterized by the acute onset of watery nonbloody diarrhea (3 or more loose stools per day)…
- Leukemoid reaction A benign condition in which the high number of white blood cells found in a blood test resembles the numbers…
- Disease, Charcot-Marie-Tooth See: Charcot-Marie-Tooth disease
- Ankyrin deficiency Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane…
- Toddler A young child who is learning to walk with short unsteady steps. The word toddle is of unknown origin
- Choking (object in airway) Partial or complete obstruction of the airway can be due to a foreign body (e.g., food, a bead, toy, etc.)…
- Ribozyme An RNA molecule that can catalyze its own chemical reactions
- Familial dysautonomia A genetic disorder of the autonomic nervous system, affecting especially Ashkenazi Jewish children. Familial…