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).
Hyaline membrane disease
A respiratory disease of the newborn, especially the premature infant, in which a membrane composed of proteins and dead cells lines the alveoli (the tiny air sacs in the lung), making gas exchange difficult or impossible. The word…
Read the definitionRandom terms
Show more- Intracellular Within a cell. In contrast to extracellular, meaning outside a cell
- Pituitary adenoma A benign tumor of the pituitary, the master gland that controls other glands and influences numerous body…
- Epilepsy, temporal-lobe Epilepsy that is characterized by abnormal electrical activity in the temporal lobe of the brain. This…
- Compression, biliary See: Biliary compression
- Kirklin See: Kirklin, John W.
- Deafness-ichthyosis-keratitis syndrome See Keratitis-ichthyosis-deafness syndrome
- Diabetes, brittle A type of diabetes when a person's blood glucose (sugar) level often swings quickly from high to low and from…
- Cyst, synovial, of the popliteal space A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined…
- Gnathostomiasis A disease due to the migration of an immature roundworm called Gnathostoma. Migration just under the skin…
- Orbital Relating to the orbit, in anatomy the bony cavity that contains the eyeball
- Thalassemia Not just one disease but rather a complex series of genetic (inherited) disorders all of which involve…
- Syndrome, keratitis-ichthyosis-deafness See Keratitis-ichthyosis-deafness syndrome