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).
Phenomenon, Raynaud's
A condition resulting in discoloration of fingers and/or toes when a person is exposed to changes in temperature (cold or hot) or emotional events. The skin discoloration occurs because an abnormal spasm of the blood vessels causes a…
Read the definitionRandom terms
Show more- PVC Premature ventricular contraction. See: Extrasystole
- Genome, Hereford See: Bovine genome
- Rubella immunization The standard MMR vaccine is given to prevent measles, mumps and rubella (German measles). The MMR vaccine is…
- Case-to-infection ratio The ratio of the number of cases of a disease compared to the number of infections with the agent that causes…
- Tricuspid valve One of the four heart valves, the tricuspid valve is the first one that blood encounters as it enters the…
- Thoracic vertebrae The 12 thoracic vertebrae are situated between the cervical (neck) vertebrae and the lumbar vertebrae. The…
- Vertigo, benign paroxysmal positional (BPPV) A balance disorder that results in the sudden onset of dizziness, spinning, or vertigo when moving the head
- Integrin One of a large and very important family of adhesion molecules that promote stable interactions between cells…
- Nirenberg , Marshall W. (b. 1927) American biochemist who shared the 1968 Nobel Prize in Physiology or Medicine for his work in…
- Cavy See: Guinea pig
- Hydronephrosis Hydronephrosis: Distention of the kidney with urine. Due to obstruction of urine outflow (for example, by a…
- Immunity, active Immunity, active: The production of antibodies against a specific agent by the immune system. Active immunity…