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).
Perfluorooctanoic acid
PFOA. See: Perfluorinated acid
Read the definitionRandom terms
Show more- Chart, Snellen's The familiar eye chart used to measure how well you see at various distances. Snellen's chart is imprinted…
- Pseudomelanosis coli Anosis coli): A benign, reversible condition usually, but not always, associated with long-term use of…
- Ear canal, self-cleaning Most of the time the ear canals are self-cleaning, that is, there is a slow and orderly migration of ear…
- Qd (on prescription) Seen on a prescription, qd (or, written with periods, q.d.) means one a day (from the Latin quaque die). The…
- Ciliary neuralgia A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical…
- Blood in the eye Medically known as a subconjunctival hemorrhage. A very common cause of a painless bloody eye usually first…
- Brain plasticity See Neuroplasticity
- Gastroenterology The medical specialty devoted to the study, diagnosis and treatment of disorders of the digestive system…
- Neuroradiology The field within radiology that specializes in the use of radioactive substances, x-rays and scanning devices…
- Gefitinib Gefitinib: A drug that attaches to the epidermal growth factor receptor (EGFR) on the surfaces of cells. The…
- Rhabdomyolysis A condition in which skeletal muscle cells break down, releasing myoglobin (the oxygen-carrying pigment in…
- Sympathetic nervous system A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise…