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).
Whitehead
A familiar term for what is medically called a closed comedo. A comedo, the primary sign of acne, consists of a dilated (widened) hair follicle filled with keratin squamae (skin debris), bacteria, and sebum (oil). A whitehead is a comedo…
Read the definitionRandom terms
Show more- Nef gene Short for negative factor gene, a gene the absence (or defect) of which diminishes the strength of a disease…
- Strollerobics The supportive framework of an organ (or gland or other structure), usually composed of connective tissue…
- Polony A tiny colony of DNA, about one micron in diameter. The word 'polony' is a contraction of 'polymerase…
- Aase-Smith syndrome II A genetic disorder that may be detected during early infancy and is characterized by the presence of three…
- Hyperexplexia A genetic disorder in which babies have an exaggerated startle reflex (reaction). This disorder was not…
- Isotonic solution A solution that has the same salt concentration as the normal cells of the body and the blood. As opposed to…
- Pavlov pouch At different points along the dogs' digestive tracts, the Russian physiologist Ivan Petrovich Pavlov…
- Disease, Lou Gehrig Amyotrophic lateral sclerosis (ALS), a classic motor neuron disease. Motor neuron diseases are progressive…
- Unilateral Having, or relating to, one side. Unilateral is as opposed, for example, to bilateral (which means having, or…
- Biotherapy Treatment to stimulate or restore the ability of the immune (defense) system to fight infection and disease…
- Retinoschisis, juvenile See: Juvenile retinoschisis
- Incontinent Unable to control excretions, to hold urine in the bladder or keep feces in the rectum. This is the usual…