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).
Syncope, defecation
The temporary loss of consciousness upon defecating (having a bowel movement). Syncope is the temporary loss of consciousness or, in plain English, fainting. The situations that trigger this reaction are diverse and include having blood…
Read the definitionRandom terms
Show more- Cholangitis, primary sclerosing See: Primary sclerosing cholangitis
- ACOG (Amer College of Ob & Gyn) ACOG (American College of Obstetricians and Gynecologists): The American College of Obstetricians and…
- Anorgasmia Failure to achieve orgasm (climax) during sexual intercourse. Anorgasmia can result from many causes…
- American medical school, first See: First American medical school
- Toxoplasma gondii A single-celled parasite that causes toxoplasmosis (toxo) . Toxoplasma gondii is very common (more than 60…
- Hemophilia carrier A female carrying a mutant gene for hemophilia on one of her two X chromosomes and a normal allele on her…
- Arthritis, reactive Arthritis, reactive: Reiter's syndrome is also called 'reactive arthritis' since it is thought to involve the…
- Mycet- Prefix that denotes a relationship to fungus. From the Greek mykes, meaning fungus
- Ductus A duct or walled passageway suitable for the conveyance of air or, more often in the body, liquids. The term…
- Chromosome inversion A basic type of chromosome rearrangement. A segment that does not include the centromere (and so is…
- Facioauriculovertebral sequence See: Goldenhar syndrome
- C. welchii Clostridium welchii