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).
Astrocytoma
A tumor that begins in the brain or spinal cord in small, star-shaped cells called astrocytes. The location of the tumor depends on the age of the person. In adults, astrocytomas most often arise in the cerebrum whereas in children, they…
Read the definitionRandom terms
Show more- Pruritic Itchy. A scab may be pruritic
- PEJ Percutaneous endoscopic jejunostomy
- Lysis Destruction. Hemolysis is the destruction of red blood cells with the release of hemoglobin; bacteriolysis is…
- Eschar The scab formed when a wound or skin is sealed by the heat of cautery or burning. Also the dark crusted ulcer…
- Virus, lymphadenopathy Another name for the human immunodeficiency virus (HIV), the cause of AIDS. Please see: Virus, human…
- Fusospirochetal gingivitis This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Kernig sign A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal…
- Appendectomy Appendectomy: Removal by surgery of the appendix, the small worm-like appendage of the colon (the large…
- Trauma Any injury, whether physically or emotionally inflicted. 'Trauma' has both a medical and a psychiatric…
- Renal cell carcinoma Cancer that develops in the lining of the renal tubules, which filter the blood and produce the urine. Also…
- Jail fever See: Typhus, epidemic
- Therapeutic abortion An abortion that is brought about intentionally. Also called an artificial or induced abortion. As opposed to…