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).
HLA
The major human histocompatibility system. HLA-typing is done before transplantation to determine the degree of histocompatibility. HLA is an acronym for Human Leukocyte Antigens
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Show more- Cauda equina A bundle of spinal nerve roots that arise from the bottom end of the spinal cord. The cauda equina comprises…
- Cancer, adult primary liver A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular…
- Spitz-Holter valve A pioneering one-way valve created by John Holter to treat hydrocephalus. In 1955 Mr. Holter, , a hydraulics…
- Headache, cluster A distinctive syndrome of headaches, also known as migrainous neuralgia. There are two main clinical patterns…
- Rock (drug) A street name given to cocaine that has been processed from cocaine hydrochloride to a ready-to-use free base…
- Cardiopulmonary resuscitation The circulatory system comprising the heart and blood vessels which carries nutrients and oxygen to the…
- Angiomatosis, bacillary A bacterial infection due to a cat scratch most often seen today in people with HIV. The disease…
- Dural sac The membranous sac that encases the spinal cord within the bony structure of the vertebral column. Dural…
- Syndrome, HDR The syndrome of familial Hypoparathyroidism, sensorineural Deafness, and Renal dysplasia. Inherited as an…
- Keratoconjunctivitis Inflammation of the eye involving both the cornea and the conjunctiva. Keratoconjunctivitis can be due to…
- Blood sugar Blood glucose. See also: High blood sugar; Low blood sugar
- Homologous The relationship between two chromosomes that are paired and so are homologs of each other.