Origin: Germanic Old English prefix
Bedrock has 4 different meanings across 1 category:
solid unweathered rock lying beneath surface deposits of soil
"The geologist huffed in frustration as her drill bit shattered against the impenetrable bedrock, proving that no amount of erosion could ever expose the ancient fossils trapped deep below."
principles from which other truths can be derived
"first you must learn the fundamentals"
"let's get down to basics"
The solid rock that exists at some depth below the ground surface. Bedrock is rock "in place", as opposed to material that has been transported from another location by weathering and erosion.
"The construction crew had to drill through several layers of loose soil before finally reaching the hard bedrock beneath the foundation."
To establish on a solid foundation.
"The team decided to build their new business strategy on bedrock principles of honesty and transparency."