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).
System, parasympathetic nervous
A part of nervous system that slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. The parasympathetic nervous system together with the sympathetic nervous system (that accelerates the heart rate…
Read the definitionRandom terms
Show more- D (domain) Abbreviation for domain, a discrete portion of a protein with its own function. The combination of domains in…
- Dobelle, William H. (1941-2004) Pioneer designer of an experimental system of artificial vision for the blind involving the…
- Banding of chromosomes The treatment of chromosomes to reveal characteristic patterns of horizontal bands like bar codes. The…
- Acute leukemia Leukemia: Cancer of the white blood cells (leukemia) that characteristically comes on abruptly and, if not…
- Cranial nerve, fifth The fifth cranial nerve is the trigeminal nerve. The trigeminal nerve is quite complex. It functions both as…
- Laryngeal nerve, recurrent One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After…
- CVC Commonly used abbreviation for a Central Venous Catheter, a catheter (tube) that is passed through a vein to…
- RUL Acronym for the right upper lobe (of the lung). The right lung has three lobes: the right lower lobe (RLL)…
- Menopause, induced Menopause, induced: Induced menopause occurs when menopause is due to an unusual ('unnatural') event. It is…
- MCH Abbreviation for mean cell hemoglobin concentration, which is the average concentration of hemoglobin in a…
- Fruitfly genome See: Drosophila genome
- Disease, Fabry See: Fabry disease