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).
MCAD deficiency
Deficiency of an enzyme that makes it impossible to digest certain kinds of fat. MCAD stands for medium-chain acyl-CoA dehydrogenase. Children born with MCAD deficiency cannot metabolize (digest) medium-chain fats such as coconut oil. If…
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Show more- HGD The gene encoding an enzyme called homogentisate 1,2-dioxygenase (also known as homogentisate oxidase). HGD…
- Bones, axial There are 80 axial bones, comprised of 29 bones in the head and 51 bones in the trunk
- Anterior pituitary The front portion of the pituitary, a small gland in the head called the master gland. Hormones secreted by…
- Rochalimaea quintana Now preferentially referred to as Bartonella quintana, this is an unusual rickettsial organism that can…
- Buschke disease See: Scleredema
- Symptoms, withdrawal Abnormal physical or psychological features that follow the abrupt discontinuation of a drug that has the…
- Calcitonin Calcitonin: A hormone produced by the thyroid gland that lowers the levels of calcium and phosphate in the…
- Giant cell tumor of bone A tumor of bone characterized by massive destruction of the end (epiphysis) of a long bone. The site most…
- Disease, Brill-Zinsser Recrudescence of epidemic typhus years after the initial attack. The agent that causes epidemic typhus…
- Two-faced twins Twin: Known medically as diprosopus, two-faced twins are conjoined twins (incompletely separated identical…
- Ductal carcinoma of the breast, infiltrating Breast, infiltrating: Infiltrating ductal carcinoma is one of several recognized specific patterns of cancer…
- Error, type II See: Error, beta