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).
Immune response
Any reaction by the immune system.
Read the definitionRandom terms
Show more- Tinea capitis A superficial fungus infection of the skin, affecting the scalp. Also known as ringworm. This disorder occurs…
- Beijerinck, Martinus W. (1851-1931) Dutch microbiologist who was the first person to use the term 'virus' for the invisible…
- Anomia A problem with word finding. Impaired recall of words with no impairment of comprehension or the capacity to…
- Rhinitis, vasomotor Inflammation of the nose (rhinitis) due to abnormal neuronal (nerve) control of the blood vessels in the…
- Defibrillator A device used to correct a dangerously abnormal heart rhythm, usually ventricular fibrillation, or to restart…
- Cytotoxic Toxic to cells, cell-toxic, cell-killing. Any agent or process that kills cells. Chemotherapy and…
- Transmission distortion Distortion in the transmission of genes or chromosomes to the offspring, resulting in a significant…
- LaMontagne See: La Montagne, John
- Infantile genetic agranulocytosis Children born with this condition lack neutrophils (a type of white blood cell that is important in fighting…
- Calcinosis An abnormal deposit of calcium salts in body tissues, as is seen in some forms of disease
- Smoldering leukemia A condition in which the bone marrow does not function normally. It does not produce enough blood cells. This…
- Balanitis Inflammation of the rounded head (the glans) of the penis. Inflammation of the foreskin is called posthitis…