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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Disease, Lou Gehrig
Amyotrophic lateral sclerosis (ALS), a classic motor neuron disease. Motor neuron diseases are progressive chronic diseases of the nerves that come from the spinal cord responsible for supplying electrical stimulation to the muscles. This…
Read the definitionRandom terms
Show more- Toxic agent syndrome See: Toxic syndrome
- Eardrum The tympanic membrane of the ear, or tympanum, the membrane that separates the middle ear from the external…
- Neoplasm A tumor. An abnormal growth of tissue. The word neoplasm is not synonymous with cancer. A neoplasm may be…
- Y map The array of genes on the Y chromosome. Once thought to be a genetic wasteland, the Y now is known to contain…
- Directives, advance Known also as advance medical directives, these are documents that pertain to treatment preferences and the…
- Alternating hemiplegia of childhood A rare neurological disorder with frequent temporary episodes of paralysis of one side of the body…
- T-cell receptor A device used by T cells for recognizing specific antigens. T cells have receptors that are activated…
- ESWL Street name for alpha-ethyltryptamine.
- Prostate cancer gene Prostate cancer gene: One of the genes that influences the origin and/or progression of prostate cancer…
- Aphasia Aphasia: One in a group of speech disorders in which there is a defect or loss of the power of expression by…
- Acetabulum The cup-shaped socket of the hip joint. In fact, in Latin an 'acetabulum' is cup, a vinegar cup. The…
- Oscillating vision See: Oscillopsia