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).
Sinus headache
A headache caused by pressure within the sinus cavities of the head, usually in connection with infection of the sinuses. Signs and symptoms of sinus headache include pain and tenderness in the sinus area, discharge from the nose, and…
Read the definitionRandom terms
Show more- Syndrome, economy class The formation of blood clots in veins deep within the legs -- deep vein thrombosis -- occurring during (or…
- Carbon dioxide A gas which is the byproduct of cellular metabolism and which collects in the tissues, is cleared from the…
- Estrogen replacement therapy (ERT) Estrogen replacement therapy (ERT) is used to treat menopause. It reduces or stops the short-term changes of…
- Osmolar In biochemistry, referring to the osmolarity, the concentration of osmotically active particles in solution…
- Bioterrorism Bioterrorism: Terrorism using biologic agents. Biological diseases and the agents that might be used for…
- Robertsonian translocation A common and significant type of chromosome rearrangement that is formed by fusion of the whole long arms of…
- Scabies Scabies: Infestation of the skin by the human itch mite, Sarcaptes scabies. The initial symptom of scabies…
- Infection, Vincent This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Hemorrhagic diarrhea, E. coli Bloody colitis (inflammation of the bowel) caused by E. coli, usually by the strain E. coli 0157:H7. The…
- Left hepatic duct The duct that drains bile from the left half of the liver and joins the right hepatic duct to form the common…
- Teratogenic drugs A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the…
- Post-term infant An overly mature baby that has not been born until well after the usual term pregnancy. A post-term baby is…