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).
Inherited immunodeficiency disease
See: Primary immunodeficiency disease
Read the definitionRandom terms
Show more- Meningoencephalitis Meningitis + encephalitis, inflammation of the meninges and brain. Called also: Encephalomeningitis
- Dislocation, congenital hip The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is…
- Methadone A synthetic opiate. The most common medical use for methadone is as a legal substitute for heroin in…
- Neuroplasticity The brain's ability to reorganize itself by forming new neural connections throughout life. Neuroplasticity…
- Dendritic cell A special type of cell that is a key regulator of the immune system, acting as a professional…
- Menstrual synchronization A phenomenon that occurs when two or more menstruating women live together, in which the menstrual cycles of…
- Genome, Arabidopsis thaliana See: Arabidopsis thaliana genome
- Perinatal transmission Transmission of a disease-causing agent (a pathogen) from mother to baby during the perinatal period, the…
- Hearing screening test, newborn Screening of the newborn baby's ability to hear. Newborn screening of hearing is done with automated auditory…
- E. coli hemorrhagic diarrhea Bloody colitis (inflammation of the bowel) caused by E. coli, usually by the strain E. coli 0157:H7. The…
- Fragile X tremor/ataxia syndrome Abbreviated FXTAS (pronounced fax-tass). A progressive neurological disorder that strikes men over age 50 and…
- Psychoneuroimmunology The study of the connections between the mind and the neural, immune and endocrine (hormonal) systems. The…