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).
Homologous chromosomes
A pair of chromosomes containing the same gene sequences, each derived from one parent
Read the definitionRandom terms
Show more- Giant cell arteritis A serious disease characterized by inflammation of the walls of the blood vessels (vasculitis). The vessels…
- Science (journal) A weekly journal concerning science. Science was founded in 1880 by one of the world's most famous…
- Progressive supranuclear palsy Progressive supranuclear palsy: A neurologic disorder of unknown origin that gradually destroys cells in many…
- State, hypercoagulable A hypercoagulable state is the medical term for a condition in which there is an abnormally increased…
- Thoracic cage The structure formed by the thoracic vertebrae and ribs, the sternum (breastbone), and the costal cartilages…
- Disease, graft-versus-host A reaction of donated bone marrow against a patient's own tissue. Also called GVHD
- Dreams Thoughts, visions, and other sensations that occupy the mind in sleep. Dreams occur during that part of sleep…
- Attenuated FAP Attenuated familial adenomatous polyposis
- Bladder infection Infection of the urinary bladder. Some people are at more risk for bladder and other urinary tract infections…
- Dextrocardia The heart is reversed and is in the right side of the chest rather than in its normal location on the left…
- Word blindness A neurological disorder characterized by loss of the ability to read or understand the written word. Word…
- Eyelids, congenital ptosis of the Drooping of the upper eyelids at birth. The lids may droop only slightly or they may cover the pupils and…