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).
System, peripheral nervous (PNS)
That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. The other is the central nervous system (CNS) which is made up of…
Read the definitionRandom terms
Show more- Acute phase reactant See: Acute-phase protein
- Syndrome, Klippel-Feil See: Klippel-Feil sequence
- CPM machine A machine used to help rehabilitate a limb (an arm or leg). The continuous passive motion (CPM) machine is…
- Steroid, designer See: Designer steroid
- Pseudogout Pseudogout: Inflammation of the joints caused by deposits of calcium pyrophosphate crystals, resulting in…
- Hemolysis The destruction of red blood cells which leads to the release of hemoglobin from within the red blood cells…
- Puncture wound An injury caused by a pointed object that pierces or penetrates the skin. Any puncture wound through tennis…
- Salmonella genome The entire genetic complement (the DNA) of Salmonella bacteria. The genomes of two strains of Salmonella…
- Frame, reading See: Reading frame
- Granuloma, swimming pool Localized nodular skin inflammation (small reddish raised areas of skin) caused by a bacterium called…
- Gynecology The branch of medicine particularly concerned with the health of the female organs of reproduction and…
- Thyroxine Abbreviated T4. A hormone made by the thyroid gland that has four iodine molecules attached to its molecular…