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).
Vas deferens
The tube connecting the testes with the urethra. The vas deferens is a coiled duct that conveys sperm from the epididymis to the ejaculatory duct and the urethra
Read the definitionRandom terms
Show more- Tuberculosis vaccination A vaccination for tuberculosis (TB). The vaccine, known as BCG (bacille Calmette Guerin), is used in most…
- Secondary cataract See: Cataract, secondary
- Beta error The statistical error (said to be 'of the second kind' or type II) made in testing when it is concluded that…
- Ventricle, fourth >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Topical Pertaining to a particular surface area. A topical agent is applied to a certain area of the skin and is…
- Vulvodynia, essential A chronic, diffuse, unremitting sensation of burning of the vulva -- (the female external genital organs…
- PID (pelvic inflammatory disease) Despite its seeming lack of gender, this term is applied to women only. PID refers exclusively to ascending…
- Cluster In epidemiology, an aggregation of cases of a disease or another health-related condition, such as a cancer…
- Mastectomy, double Removal of both breasts
- Rapid strep test Rapid strep test: A diagnostic test commonly used to demonstrate whether streptococcus bacteria ('strep') are…
- Test, sweat chloride See: Sweat test
- Spider fear See: Arachnophobia