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).
Ion channel
A protein that acts as a pore in a cell membrane and permits the selective passage of ions (such as potassium ions, sodium ions, and calcium ions), by means of which electrical current passes in and out of the cell. Ion channels also serve…
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Show more- Facelift Although infrequent, the risks and complications of facelift surgery include: bleeding, hematoma, bruising…
- Acid deposition A complex chemical and atmospheric phenomenon that occurs when emissions of sulfur and nitrogen compounds and…
- Acne, adult Popular name for rosacea. For more information, see: Rosacea
- Allergic reaction The hypersensitive response of the immune system of an allergic individual to a substance. When an allergen…
- Heterotrisomy Trisomy of different chromosomes. The occurrence of two children in the same family, one with trisomy 18 and…
- Obstetrician A physician who delivers babies and is in the practice of obstetrics, the art and science of managing…
- Proteins, acute-phase See: Acute-phase protein
- Kernig sign A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal…
- Phobia An unreasonable sort of fear that can cause avoidance and panic. Phobias are a relatively common type of…
- Sylvatic plague Plague that is spread by ground squirrels and other wild rodents, for example, in the western portion of the…
- Thrombocythemia An abnormally high number of platelets in the blood. Also known as thrombocytosis.
- Cryotherapy Cryotherapy: Literally, 'cold therapy.' Cryotherapy, sometimes referred to as cryosurgery, is a procedure…