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- Ocular prosthesis 1. An artificial replacement for an eyeball. In other words, an artificial eye, a globe of glass or plastic…
- Osteoblastoma A benign tumor in bone tissue. Osteoblastomas are small, and are seen most frequently in children or young…
- Herpes simplex type 2 A herpes virus that causes genital herpes, which is characterized by sores in the genital area. Genital…
- Anemia and triphalangeal thumbs See: Aase-Smith syndrome II
- XTC A street name for 3-4 methylenedioxymethamphetamine. See: Ecstasy
- Pest (plague) An infectious disease due to a bacteria called Yersinia pestis. Y. pestis mainly infects rats and other…
- Edema, hereditary angioneurotic Edema, hereditary angioneurotic: A genetic form of angioedema. (Angioedema is also referred to as Quinke's…
- Dementia, MELAS Dementia, MELAS: MELAS is the acronym for Mitochondrial Encephalopathy, Lactic Acidosis, and Strokelike…
- Psoriasis, guttate A type of psoriasis characterized by red, scaly patches of inflamed skin on all parts of the body. It is…
- Quasi- Prefix meaning seemingly. As, for example, in quasidominant, seemingly dominant.
- Xiphoid process A pointed cartilage attached to the lower end of the breastbone or sternum, the smallest and lowest division…
- Radioactive Emitting energy waves due to decaying atomic nuclei. Radioactive substances are used in medicine as tracers…