Definition of native rock in English:

native rock

noun

  • [mass noun] Rock in its original place, i.e. that has not been moved or quarried.

    • ‘Unfortunately, we do not have a wide selection of native rock available.’
    • ‘The uranium is probably being rendered into a water-soluble form from the native rock through a process in the mining industry.’
    • ‘It overlies the native rock or sediments from which the soil is formed.’