bedrock

[bed-rok]

noun

1. Geology.,  unbroken solid rock, overlaid in most places by soil or rock fragments.

2. bottom layer; lowest stratum.

3. any firm foundation or basis.

   Technical courses will be founded on a bedrock of sound, general education so as to produce a well-rounded engineer.

4. the fundamental principles, as of a teaching, belief, or science.

   Let's strip away the cant and get down to bedrock.

adjective

1. basic; fundamental.

bedrock

/ ˈbɛdˌrɒk /

noun

1. the solid unweathered rock that lies beneath the loose surface deposits of soil, alluvium, etc

2. basic principles or facts (esp in the phrase get down to bedrock )

3. the lowest point, level, or layer

bedrock

1. The solid rock that lies beneath the soil and other loose material on the Earth's surface.

Word History and Origins

Origin of bedrock¹

An Americanism dating back to 1840–50; bed + rock ¹

Example Sentences

Environmental groups said the announcement marks yet another blow from an administration that has already taken aim at many of the nation’s bedrock climate programs.

From Los Angeles Times

But American might, military and political, is still the bedrock on which the alliance is built, and questions linger about this president's willingness to wield it.

From BBC

Alcaraz's serve was the bedrock of a brilliant performance, neutralising Sinner's strengths while setting the Spaniard up to play his naturally flamboyant, big-hitting game.

From BBC

Anchored by kicker Cameron Dicker, punter JK Scott and long snapper Josh Harris, the Chargers’ specialists have been a bedrock of stability the past three seasons.

From Los Angeles Times

It honed the lower body and core strength that drove his powerful delivery — a behind-the-scenes bedrock in his rise to becoming a three-time Cy Young Award winner and generationally dominant left-handed star.

From Los Angeles Times