Definition of bedrock in English:



  • 1Solid rock underlying loose deposits such as soil or alluvium.

    • ‘Built from reformed rock, the walls were solid, and as strong as bedrock.’
    • ‘When it is spread close to a stream or on shallow soil over bedrock, what is the threat?’
    • ‘Four of the five populations were growing in faulted crevices of bedrock associated with shoals.’
    • ‘The plants were growing from several fissures in the mafic bedrock that underlies the creek.’
    • ‘It also includes the air and water space above, and the subsoil and bedrock below that.’
    • ‘At the most basic a round barrow is simply a roughly hemispherical mound of soil, stone, and redeposited bedrock heaped over a central burial.’
    • ‘Surrounded by rivers, the allotted area consists of water-infused soil with no bedrock.’
    • ‘Because of the ice cover over most of the continent, only a few sites are actually available at which bedrock is exposed at the surface.’
    • ‘Little of New Brunswick is underlain by bedrock suitable for the formation of solution caves.’
    • ‘These prairies, like the Black Belt, have rich soils derived from calcareous bedrock.’
    • ‘Our first objective was to determine the extent to which bedrock and aspect affected soils of the Holyoke Range.’
    • ‘At the summit of the bluff is a small clearing with exposed slate bedrock, fractured by cracks and crevices.’
    • ‘The hotel is built on an outcrop of bedrock - the only place in the area where the ground is not permafrost.’
    • ‘The greensand soil and chalky bedrock are similar to the soil found beneath the vineyards of the Champagne region, and are integral to its flavour.’
    • ‘A shallow shaft was excavated to bedrock, followed by drilling and blasting.’
    • ‘Dams, sea walls, and levees must be founded on firm base material, preferably bedrock.’
    • ‘All the stages are based on hard-packed bedrock so hopefully they shouldn't deteriorate too much.’
    • ‘Carbonate-rich Paleozoic bedrock characterizes the geology of the Mixedwood Plains.’
    • ‘Flat or slightly rolling terrain is the rule here, and thick soil deposits overlay Cretaceous shale bedrock.’
    • ‘Erosion of the underlying bedrock appears to have been limited.’
    substratum, substructure, understructure, solid foundation, base, basis, underpinning, bed, rock bed
    View synonyms
    1. 1.1The fundamental principles on which something is based.
      ‘honesty is the bedrock of a good relationship’
      • ‘Give them a clear standard that is in accordance with the bedrock principles of our nation.’
      • ‘These terms were to remain as the bedrock of his artistic principles even though his manner and procedures of painting were to change quite radically.’
      • ‘Physics gave him a solid foundation, the bedrock for all his beliefs about the universe.’
      • ‘We need cool heads, warm hearts and our bedrock values of fairness and equality to choose the right path.’
      • ‘Surely patient confidentiality is one of the bedrocks on which good medical practice is based.’
      core, basis, base, foundation, root, roots, heart, backbone, essence, nitty-gritty
      View synonyms