MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Mucopolysaccharidosis type IIIB
Sanfilippo syndrome due to deficiency of the enzyme alpha-N-acetylglucosaminidase. See also Mucopolysaccharidosis
Read the definitionRandom terms
Show more- Mab Monoclonal antibody. See: MAB
- Aerobic exercise Brisk physical activity that requires the heart and lungs to work harder to meet the body's increased oxygen…
- Gap junction An organized collections of protein channels in cell membranes that allows ions and small molecules to pass…
- Hyperplasia, endometrial A condition characterized by overgrowth of the lining of the uterus. Hyperplasia means overgrowth. The…
- Sociopathic personality disorder See: Antisocial personality disorder
- Overbreathing See: Hyperventilation
- Fibroadenoma A benign growth in the breast that is solid, firm, smooth and usually painless or only slightly tender…
- Pain, false labor The pain associated with intermittent non-productive muscular contractions of the womb (uterus) during…
- Foramen ovale An oval opening between the two upper chambers of the heart (the atria) that is a normal feature of the fetal…
- Malformation, arteriovenous (AVM) An arteriovenous malformation (AVM) is a congenital disorder (one present at birth) of blood vessels in the…
- Drusen Tiny yellow or white deposits in the retina of the eye or on the optic nerve head. The presence of drusen is…
- Nonblinded study A clinical trial or other experiment in which the researchers know what treatments are being given to each…