MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Cyst, sebaceous
A sebaceous cyst is a rounded swollen area of the skin formed by an abnormal sac of retained excretion (sebum) from the sebaceous follicles.
Read the definitionRandom terms
Show more- Caudal epidural anesthesia See Caudal anesthesia
- Dolor 1. Pain, one of the four classic signs of inflammation (together with calor, rubor and tumor). 2. By…
- Ear wax Ear wax: A natural wax-like substance secreted by special glands in the skin on the outer part of the ear…
- X-ray crystallography The use of X-rays of known wavelength to learn the structure of any crystalline material. Put otherwise…
- Venin Snake venom (poison).
- Small saphenous vein The smaller of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- VCJD Stands for variant Creutzfeldt-Jakob disease, a human disease thought due to the same infectious agent as…
- Mutagen Something capable of causing a gene-change. Among the known mutagens are radiation, certain chemicals and…
- Cyclobutanone See: 2-ACB
- Anencephaly A neural tube defect (NTD) that occurs when the cephalic (head) end of the neural tube fails to close…
- Heart ventricle One of the two lower chambers of the heart. The right ventricle is the chamber that receives blood from the…
- Immunotherapy Treatment to stimulate or restore the ability of the immune (defense) system to fight infection and disease…