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).
Lactase
Enzyme that breaks down the milk sugar lactose into glucose and galactose. Persons with a deficiency of lactase in the gut can develop abdominal cramping and diarrhea after ingesting milk products
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Show more- Alpha-1 antitrypsin deficiency Alpha-1 antitrypsin deficiency: An inherited disorder that results in low or no production of a protein…
- Melancholia Old term for depression.
- Capsulitis Inflammation of the capsule of the lens, joint, liver, or labyrinth. See also: Adhesive capsulitis
- Pulmonary alveolar proteinosis Lung disease characterized by progressive difficulty breathing (dyspnea) and cough due to the accumulation of…
- Fracture, hangman's See: Hangman's fracture
- Eye bank A place to store corneas (the clear 'front window' of the eye) for use in future keratoplasty (surgery to…
- Thoraces Plural of thorax.
- Chiropractor Someone who practices chiropractic. Chiropractic defined as a system of diagnosis and treatment that is based…
- Synapsis The side-by-side and point-by-point pairing of homologous chromosomes during meiosis
- Cryocardioplegia Paralysis of the heart by cold (hypothermia)
- Castleman disease A disorder of lymphoid tissue (lymphadenopathy) with massive overgrowth (hyperplasia) of lymph nodes…
- Neonatal Pertaining to the newborn period which, by convention, is the first four weeks after birth.