2.HEG[uncountableU]solidrock in the ground below soil or sand 基岩,底岩,岩床
Examples from the Corpus
bedrock• In fact, some of the footings had rested on soil, not bedrock.• Some bedrock mineralisation has been found.• Facts are the bedrock of any trial.• They form the bedrock of our economicplanet.• All of the landswept by the floods was stripped absolutely to bedrock.• The interface between weatheredmaterial and unweathered bedrock is known as the weathering front.