refractile

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English[edit]

Adjective[edit]

refractile (comparative more refractile, superlative most refractile)

  1. Able to refract, refractive
    • 1884, Various, Scientific American Supplement, No. 458, October 11, 1884[1]:
      As the colony increases, the granular character becomes more marked, until it seems to be made up of highly refractile granules, like a mass of particles of glass.
    • 1913, John William Henry Eyre, The Elements of Bacteriological Technique[2]:
      Stained bacilli, when examined with the polarising microscope, often show a doubly refractile cell wall (e. g., B. tuberculosis and B. anthracis).
    • 1997 July 11, Bin Wang & Adam Kuspa, “Dictyostelium Development in the Absence of cAMP”, in Science[3], volume 277, number 5323, DOI:10.1126/science.277.5323.251, pages 251-254:
      The number of refractile, ovoid spores was determined by phase-contrast microscopy using a hemocytometer.
    • 2008 August 27, H. Roger Segelken, “Thomas H. Weller, Whose Work on Tissue Led to Nobel Prize, Is Dead at 93”, in New York Times[4]:
      He watched daily through the microscope for characteristic signs of viral infection, and eventually saw what he later described as a “peculiar rounding of scattered cells with refractile bodies in the cytoplasm and nucleus.”