Definition of greensand in English:

greensand

noun

Geology
  • 1[mass noun] A greenish kind of sandstone, often loosely consolidated.

    • ‘Derived from the prehistoric deposits of marine creatures, greensand is good for loosening-up compacted soils.’
    • ‘From that point upstream the sub-soil was composed of laminated greensand, that is, clay containing glauconite interspersed with discrete bands of fine-grained sand.’
    • ‘They lie on a fault line created by a seam of greensand, which runs for 200 miles from Lyme Regis to the Wash, taking in the edge of the Bowood Estate.’
    • ‘The sample was taken from a thin limestone lens with phosphatic oolites within the phosphatic greensand.’
    • ‘Use additions of mineral-rich materials such as rock phosphate or greensand to tailor the nutrients in your compost to match the needs of your soil and plants.’
    1. 1.1A stratum largely composed of greensand, deposited during the Cretaceous period and often underlying chalk.
      ‘the Upper Greensand’
      • ‘Overlying the Jurassic succession, a thin sequence of basal Cretaceous strata including the Greensand is characterized by radial outward dips.’

Pronunciation:

greensand

/ˈɡriːnsand/