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).
HBV
Hepatitis B virus. A virus which primarily causes inflammation of the liver. The hepatitis B virus can be transmitted in several ways including blood transfusion, needle sticks, body piercing and tattooing using unsterile instruments…
Read the definitionRandom terms
Show more- Hypotensive Having abnormally low blood pressure (hypotension). See also: Hypertensive; Normotensive
- Neuron A nerve cell that sends and receives electrical signals over long distances within the body. A neuron may…
- Fever, relapsing See: Relapsing fever
- Penetrant trait A genetic trait (characteristic) that is present in the genome and manifests itself in the individual. By…
- Immunization, DPT See: DPT immunization
- Queasy A feeling of nausea
- ESR Abbreviation for erythrocyte sedimentation rate, a blood test that detects and monitors inflammation in the…
- Exopeptidase An enzyme that catalyzes the cleavage of the terminal (last) or next-to-last peptide bond from a polypeptide…
- Fornication Sexual intercourse that is 'illicit', outside of marriage. The term 'fornication' has a close medical…
- Teratophobia Fear of bearing a malformed child. A phobia is an unreasonable sort of fear that can cause avoidance and…
- Bag, air A bag that fills with air, designed for frontal impact crashes, the kind of crashes which account for more…
- Cystoscope An optical instrument (a scope) that is inserted through the urethra into the bladder. A cystoscope has two…