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).
Simian crease
A single transverse palmar crease, a minor variation associated with Down syndrome (trisomy 21). Also called a four-finger crease, single palmar flexion crease, single upper palm crease, or line. There are most often two transverse palmar…
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Show more- Charles D. Kelman See: Phacoemulsification
- Evening primrose oil A natural source of essential fatty acids (EFOs). Evening primrose oil contains a higher level of arachnoidic…
- Dilation, pupil (test) This examination enables your eye care professional to see more of your retina, the light-sensitive layer of…
- Granulation That part of the healing process in which rough, pink tissue containing new connective tissue and capillaries…
- PPD 1. Postpartum depression. 2. Purified protein derivative (the PPD skin test for tuberculosis)
- Purine One of the two classes of bases in DNA and RNA. The purine bases are guanine (G) and adenine (A). Uric acid…
- Vulvar pain, chronic Also called essential vulvodynia (literally means 'painful vulva'), pain in the vulva, the female external…
- Deficiency, protein C Protein C is a protein in plasma that enters into the cascade of biochemical events leading to the formation…
- Trunk bones The bones of the human trunk, 51 bones in all, consisting of 26 vertebrae, 24 ribs and the sternum. The 26…
- Borborygmus Bowel sounds, the gurgling, rumbling, or growling noise from the abdomen caused by the muscular contractions…
- Deuteranopia Colorblindness of the red-green type, also known as deuteranomaly or Daltonism. The term 'Daltonism' is…
- ETS Environmental tobacco smoke. Smoke generated from the sidestream (the burning end) of a cigarette, pipe or…