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).
Acute radiation syndrome
An acute illness caused by a dose greater than 50 rads of penetrating radiation to most or all of the body in a short time, usually a matter of minutes. Examples of persons who suffered from acute radiation syndrome (ARS) are the survivors…
Read the definitionRandom terms
Show more- Table An old-fashioned but convenient household measure of capacity. A tablespoon holds about 3 teaspoons, each…
- Toxic agent syndrome See: Toxic syndrome
- Corneal ring, intrastromal A plastic ring designed to be implanted in the cornea, the transparent structure in the front of the eye. The…
- Keratotomy A surgical incision (a cut) made into the cornea. A radial keratotomy is a surgical procedure designed to…
- Xanthoma, eruptive See: Eruptive xanthoma
- SPECT An acronym that stands for Single Photon Emission Computed Tomography, a nuclear medicine procedure in which…
- Skin graft, autogenic A graft using the patient's own skin. Also known as an autologous graft.
- Otopharyngeal tube The tube that runs from the middle ear to the pharynx, known also as the Eustachian tube. The function of…
- Supernumerary placenta A succenturiate or accessory placenta
- Medication, antiviral An drug that kills viruses or suppresses their replication and, hence, inhibits their capability to multiply…
- Foramen A natural opening. Although a foramen is usually through bone, it can be an opening through other types of…
- Non-inferior clinical trial A clinical trial that shows that a new treatment is equivalent to standard treatment. Also called a…