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).
Pain, back
Pain felt in the low or upper back. There are many causes of back pain. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low…
Read the definitionRandom terms
Show more- Thrombocytopenic purpura, acute See thrombocythemia.
- Familial Parkinson disease type 2 A familial form of Parkinson disease inherited in an autosomal recessive manner due to mutation in the gene…
- Psoriasis, guttate A type of psoriasis characterized by red, scaly patches of inflamed skin on all parts of the body. It is…
- Stanolone A semisynthetic analog of dihydrotestosterone
- Endocannabinoid A marijuana-like substance. 'Marijuana-like substances (endocannabinoids)... act at specific receptors on the…
- Sialidosis A form of mucolipidosis characterized by deficiency of acid alpha-N-acetyl- neuraminidase (sialidase). See…
- Thoracic aneurysm A local widening and bulging of a vessel (an aneurysm) within the thorax (chest). See: Aortic aneurysm. An…
- House staff The resident physicians of a hospital who care for patients under the direction of the attending staff. House…
- Dystonia Dystonia: Involuntary movements and prolonged muscle contraction, resulting in twisting body motions, tremor…
- Surgery, reflux (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Cup, optic The white, cup-like area in the center of the optic disc. The optic disk is the circular area at the back of…
- Collagen IV alpha 5 See: COL4A5