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).
Eyelid myokymia
Fine continuous contractions of the eyelid muscle, typically involving one of the lower eyelids, less often an upper eyelid. The condition occurs spontaneously, sometimes triggered by stress, fatigue, caffeine or alcohol. In most cases…
Read the definitionRandom terms
Show more- Congenital hip dislocation The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is…
- OSA (obstructive sleep apnea) See: Oscillopsia.
- Transcranial Through the cranium. As, for example, in transcranial magnetic stimulation
- Pericardium, visceral The inner layer of the pericardium, a conical sac of fibrous tissue that surrounds the heart and the roots of…
- Polyubiquitination The binding of many ubiquitin molecules to the same target protein. Polyubiquitination of proteins is the…
- Secretary's knee The patellofemoral syndrome (PFS), the commonest cause of chronic knee pain. PFS characteristically causes…
- Granular leukocyte >Neutrophils have 'neutral' subtle granules; >Eosinophils have prominent granules that stain readily with the…
- Membrane attack complex Abbreviated MAC. An abnormal activation of the complement (protein) portion of the blood, forming a cascade…
- Colorectal cancer family history See: Colon cancer family history
- Hearing screening test, newborn Screening of the newborn baby's ability to hear. Newborn screening of hearing is done with automated auditory…
- Keratitis, vaccinia See Vaccinia keratitis
- Tonsil stone A tiny stone (calculus) in the tonsils. These stones, called tonsilloliths, are found within little pockets…