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).
Blind spot
In ophthalmology, a blind spot is: > >A small area of the retina where the optic nerve enters the eye; this type of blind spot occurs normally in all eyes. >Any gap in the visual field corresponding to an area of the retina where no visual…
Read the definitionRandom terms
Show more- Expiration date The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful…
- Thiazolidinedione (Pronounced THIGH-ah-ZO-li-deen-DYE-own.) A class of drugs for type 2 diabetes that lower the blood sugar by…
- Morton nerve entrapment See: Morton's neuroma
- Stroke index A cardiodynamic measure. Stroke volume is the amount of blood the left ventricle ejects in one beat, measured…
- Jaw The bones below the mouth (the mandible) and the bone above the mouth just above the mouth (the maxilla). The…
- Syndrome, trisomy 21 A common chromosome disorder, often called Down syndrome, due to an extra chromosome number 21 (trisomy 21)…
- Fourth stage of labor The hour or two after delivery when the tone of the uterus is established and the uterus contracts down again…
- Avastin The first drug in a new class designed to treat cancer by compromising its blood supply. Avastin…
- Environmental tobacco smoke Abbreviated ETS. Secondhand smoke. See: ETS.
- Fetal circulation The blood circulation in the fetus before birth. Before birth, the blood from the heart headed for the lungs…
- Cardiac myocyte A heart muscle cell. Sometimes called a myocyte when it is understood that it is in the heart. See also…
- Trigeminal nerve The trigeminal nerve functions both as the chief nerve of sensation for the face and the motor nerve…