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).
Arcus senilis
A cloudy opaque arc or circle around the edge of the eye, often seen in the eye of the elderly.
Read the definitionRandom terms
Show more- Hyoglossus The muscle that permits the tongue to be held on the floor of the mouth
- Becker muscular dystrophy A chronic, progressive muscle degeneration disease. A form of muscular dystrophy that is quite similar to…
- Oculocraniosomatic syndrome See: Kearns-Sayre syndrome
- Diathesis In medicine, a 'diathesis' is an elegant term for a predisposition or tendency. Thus, a hemorrhagic diathesis…
- Xanthelasma Tiny (1-2 mm) yellowish plaques that are slightly raised on the skin surface of the upper or lower eyelids…
- Transgenic Having genetic material (DNA) from another species. This term can be applied to an organism that has genes…
- Episclera A thin membrane that covers the sclera (the white of the eye). 'Epi-' is a prefix from the Greek that means…
- Chimera In medicine, a person composed of two genetically distinct types of cells. Human chimeras were first…
- Dermal Pertaining to the skin. From the Greek word derma for skin
- HTLV Human T-lymphotropic virus
- Abortion, therapeutic An abortion that is brought about intentionally. Also called an artificial or induced abortion. As opposed to…
- Syndrome, Poland A unique pattern of one-sided malformations characterized by a defect of the chest (pectoralis) muscle on one…