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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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- Autistic savant A person with autism who is exceptionally gifted in a specialized field. That field may, for example, be…
- Depression, dysthymia A type of depression involving long-term, chronic symptoms that are not disabling, but keep a person from…
- Pediatric renal infection See: Urinary tract infection in children
- OxyContin OxyContin: A prescription painkiller that has become a popular and dangerous recreational drug. Also called…
- Behavioral medicine An interdisciplinary field of research and practice that focuses on how people's thoughts and behavior affect…
- GDF-8 The gene encoding growth and differentiation factor, also known as myostatin. See: Myostatin
- Ataxia telangiectasia mutated See: ATM
- Tympany A hollow drum-like sound produced when a gas-containing cavity is tapped sharply. Tympany is heard if the…
- Valve, tricuspid One of the four heart valves, the tricuspid valve is the first one that blood encounters as it enters the…
- Skin plaque A plaque is a broad, raised area on the skin. Because it is raised, it can be felt (palpated). By definition…
- Tunica albuginea of the testis The layer of dense whitish inelastic tissue that surrounds the testis
- Retrospective study Behind the sternum (the breastbone).