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).
Randomized controlled trial
(RCT) A study in which people are allocated at random (by chance alone) to receive one of several clinical interventions. One of these interventions is the standard of comparison or control. The control may be a standard practice, a…
Read the definitionRandom terms
Show more- Ejaculatory duct A canal in the male formed by union of the vas deferens and the duct from the seminal vesicle. The…
- Section, longitudinal A cut along the long axis of a structure
- Biopsy, sentinel-lymph-node See: Sentinel lymph node biopsy
- Methemoglobinemia The presence in the blood of methemoglobin, a form of hemoglobin that is useless for carrying oxygen and…
- Renal aneurysm An aneurysm involving the kidney
- Prognostic 1. (adjective) In medicine, relating to the prognosis of a disease. For example, a favorable prognostic…
- Gastroenteritis Gastroenteritis: Inflammation of the stomach and the intestines. Can cause nausea and vomiting and/or…
- Sternutator Something that causes a sneeze. From the Latin sternutatio (sneeze). See also: Sternutation
- Epigastrium The part of the abdominal wall above the umbilicus (belly button). The hypogastrium is the part of the…
- Spinocerebellar ataxia Ataxia with malfunction of the cerebellum
- Certified nurse-midwife A person with an AS, BS, or Master's degree in nursing who has also completed specialized training in…
- Proportional counter A device for measuring radioactivity. More technically, a proportional counter counts the emission of…