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).
Major depression
A disease with certain characteristic signs and symptoms that interferes with the ability to work, sleep, eat, and enjoy once pleasurable activities. The characteristic signs and symptoms of major depression include loss of interest in…
Read the definitionRandom terms
Show more- Sinus headache A headache caused by pressure within the sinus cavities of the head, usually in connection with infection of…
- Borrelia burgdorferi The spirochete (a type of bacteria) that causes Lyme disease. Named after its discoverer, Dr. Willy…
- Atonia, REM sleep Sleep : A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to…
- Glaucoma, acute angle-closure Glaucoma, acute angle-closure: Increased pressure in the front chamber (anterior chamber) of the eye due to…
- Ultrasound, Doppler See: Doppler ultrasound
- Blood clot Blood that has been converted from a liquid to a solid state. Also called a thrombus. The process by which a…
- Programmed cell death A term often used interchangeably with apoptosis. See: Apoptosis
- Aerosolization The production of an aerosol -- a fine mist or spray containing minute particles. See: Aerosol
- Nocturnal enuresis Bedwetting at night. From the Greek 'enourin' meaning 'to urinate in.'
- SCFE Slipped capital femoral epiphysis.
- Orthopaedics The branch of surgery broadly concerned with the skeletal system (bones). This particular term is commonly…
- Marfan syndrome Marfan syndrome: An inherited disorder of connective tissue characterized by abnormalities of the eyes…