Definition of parabiosis in English:



mass nounBiology
  • The anatomical joining of two individuals, especially artificially in physiological research.

    • ‘The effects of x-irradiation on bone growth were studied in pairs of rats during protracted parabiosis involving vascular anastomosis.’
    • ‘Mortality from the procedure was nil, and the health of animals after parabiosis was excellent, as is commonly observed.’
    • ‘In this study, we demonstrated by parabiosis that type I alveolar epithelial cells and lung fibroblasts as well as interstitial monocytes/macrophages could be derived from circulating slem/progenitor cells.’


Early 20th century: modern Latin, from para- ‘beside, distinct from’ + Greek biōsis ‘mode of life’ (from bios ‘life’).