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).
Paraskevidekatriaphobia
Fear of Friday the 13th. The word 'paraskevidekatriaphobia' was devised by Dr. Donald Dossey who told his patients that 'when you learn to pronounce it, you're cured!'
Read the definitionRandom terms
Show more- BTE Behind-the-ear. See also: Behind-the-ear hearing aid
- Astatic seizure See: Atonic seizure
- Ambidextrous 1. Able to use both the right and left hands with equal dexterity. Neither right- nor left-handed.2. By…
- Anvil The incus
- Herniation Abnormal protrusion of tissue through an opening. For example, a intervertebral disk (one situated between…
- Leg pain with cramping An aching, crampy, tired, and sometimes burning pain in the legs that comes and goes -- it typically occurs…
- Red-green colorblindness A form of colorblindness in which red and green are perceived as identical. This is the most common type of…
- Annulus A ringlike structure, or any body part that is shaped like a ring. Applied to many small ring-shaped…
- Organ failure The failure of an essential system in the body. Multiple organ failure is the failure of two or more systems…
- Alternative splicing A mechanism by which different forms of mature mRNAs (messengers RNAs) are generated from the same gene…
- Conventional medicine Medicine as practiced by holders of M.D. (medical doctor) or D.O. (doctor of osteopathy) degrees and by their…
- Stricture, esophagus, acute A narrowing or closure of the normal opening of the swallowing tube leading to the stomach, usually caused by…