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).
Breast aplasia
Breast aplasia: A rare condition wherein the normal growth of the breast or nipple never takes place. They are congenitally absent. There is no sign whatsoever of the breast tissue, areola or nipple. There is nothing there. Breast aplasia…
Read the definitionRandom terms
Show more- Gram stain The Danish bacteriologist J.M.C. Gram (1853-1938) devised a method of staining bacteria using a dye called…
- Glaucoma, angle-closure Glaucoma, angle-closure: Increased pressure in the front chamber (anterior chamber) of the eye due to sudden…
- Bruce N. Ames See: Ames, Bruce N.
- Sleepwalking Sleepwalking: Purposeful moving, usually but not always including walking, while in a deep stage of sleep…
- Schizencephaly A developmental disorder of the brain characterized by abnormal slits, or clefts, in the cerebral…
- Tumor, carcinoid A tumor which secretes large amounts of the hormone serotonin. Another name for carcinoid tumor is…
- Leukemoid reaction A benign condition in which the high number of white blood cells found in a blood test resembles the numbers…
- Retinal electrophysiologic testing See: Electrophysiologic retinal testing
- Syndrome, Jadassohn-Lewandowski This is a type of what is called pachyonychia congenita (elephant nails from birth). The characteristic…
- Physics, health The science of human health and radiation exposure. Health physics, also called medical physics, is devoted…
- Bone, frontal See: Frontal bone
- Bursitis, calcific A bursa is a thin fluid-filled sac that reduces friction forces between tissues of the body. Chronic…