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).
Chromatids
The daughter strands of a duplicated chromosome joined together by a centromere.
Read the definitionRandom terms
Show more- Aneurysm, arterial An aneurysm involving an artery. As opposed to a venous aneurysm or a cardiac aneurysm. An aneurysm is a…
- Syndrome, acute brain See: Delirium
- Nerve, sciatic The largest nerve in the body, the sciatic nerve begins from nerve roots in the lumbar part of the spinal…
- Electrophysiologic study of the heart A test of the electrical conduction system of the heart (the system that generates the heart beat)…
- TTR The gene that encodes transthyretin, a plasma protein consisting of 127 amino acids that binds retinol and…
- Dendrite A short arm-like protuberance from a nerve cell (a neuron). Dendrites from neurons next to one another are…
- Fecund Fruitful, abundantly fertile. Just as a writer is prolific, a woman may be fecund, able to reproduce…
- Aphasia, amnesic See Anomia
- Electrophysiologic retinal testing Testing done to diagnose specific disorders of the retina, including inherited retinal diseases, the effects…
- Bietti crystalline dystrophy A genetic eye disease that leads to progressive night blindness and visual field constriction and is…
- Blood group, ABO The major human blood group system. The ABO type of a person depends upon the presence or absence of two…
- Hyaline membrane disease A respiratory disease of the newborn, especially the premature infant, in which a membrane composed of…