Definition of oolite in English:



mass noun
  • 1Geology
    Limestone consisting of a mass of rounded grains (ooliths) made up of concentric layers.

    • ‘Greensand, coal, rock salt, coral limestone, oolites, and boulder clays are examples of indicators of depositional environments.’
    • ‘At Taskent the upper layer of oolite is more resistant but sharply truncated beneath stromatolites of the overlying Gevne Formation.’
    • ‘However, in the northeastern area of the outcrop, only the lowermost 0-2 m consist of calcareous sandstone, with oolites, biothermal limestones and crinoidal limestones characterizing the remainder.’
    • ‘The sample was taken from a thin limestone lens with phosphatic oolites within the phosphatic greensand.’
    • ‘In the process of being buried under other sediments, these ooids can fuse into a solid mass of sedimentary rock called oolite.’
    1. 1.1
      another term for oolith


Early 19th century from French oölithe, modern Latin oolites(see oo-, -lite).