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).
Urachus
A canal connecting the bladder of the fetus with the allantois, a structure that contributes to the formation of the umbilical cord. The lumen (inside) of the urachus is normally obliterated during embryonic development, transforming the…
Read the definitionRandom terms
Show more- Arthritis, reactive Arthritis, reactive: Reiter's syndrome is also called 'reactive arthritis' since it is thought to involve the…
- Filariasis, lymphatic See Lymphatic filariasis
- National Institute Arthritis, Musculoskeletal L and Skin Diseases (NIAMS): One of the National Institutes of Health in the U.S. As its somewhat cumbersome…
- Calcium excess Overly high intake of calcium that can result in elevated levels of calcium in the blood (hypercalcemia)…
- Congenital malformation A physical defect present in a baby at birth, irrespective of whether the defect is caused by a genetic…
- Low blood pressure Low blood pressure: Any blood pressure that is below the normal expected for an individual in a given…
- Paraparesis Weakness of the lower extremities
- Breast absence Breast absence: A rare condition wherein the normal growth of the breast or nipple never takes place. They…
- Buschke's disease See: Scleredema
- Range, normal By convention, the normal range for whatever (a particular test, condition, symptom, behavior, etc.) is set…
- Congenital neutropenia, severe (SCN) Neutropenia, severe (SCN): Children born with this condition lack neutrophils (a type of white blood cell…
- Lauterbur See: Lauterbur, Paul C.