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).
HIB
This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria responsible for a range of serious "invasive" diseases including meningitis with potential brain damage and epiglottitis with…
Read the definitionRandom terms
Show more- Syndrome, Meniere A condition with recurrent vertigo accompanied by ringing in the ears (tinnitus) and deafness. Symptoms…
- Klippel-Feil anomalad See: Klippel-Feil sequence
- Acne, adult Popular name for rosacea. For more information, see: Rosacea
- Neuroleptic A term that refers to the effects of antipsychotic drugs on a patient, especially on his or her cognition and…
- Chargaff rule The rule that in DNA there is always equality in quantity between the bases A and T and between the bases G…
- Allergic conjunctivitis Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing…
- Usher syndrome Usher syndrome: A genetic disorder characterized by hearing impairment and an eye disorder called retinitis…
- Physics, medical See: Medical physics
- Premature contraction of the heart When a single heartbeat occurs earlier than normal. This phenomenon can be within normal limits or represent…
- Visual pathway glioma A slow-growing benign tumor of the eye
- HBV Hepatitis B virus. A virus which primarily causes inflammation of the liver. The hepatitis B virus can be…
- Concordant couple Pair of long-term sexual partners in which both partners have a sexually transmitted infection. The CDC has…