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

This extraordinary change, the authors say, could be thanks to an ice plain - a relatively flat area of bedrock on which the glacier lightly rests.

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Congress’ positions on procedural issues, such as raising the debt ceiling or eliminating the filibuster, also increasingly depend not on bedrock principles but on who occupies the White House.

Read more on Salon

But Southern California’s bedrock industry is confronting other challenges, including shifting consumer habits and competition from social media platforms like YouTube and TikTok.

Read more on Los Angeles Times

Magazines can no longer afford to make traditional print and web advertising the bedrock of their business.

Read more on The Wall Street Journal

It is this philosophy which has formed the bedrock of the camp to prepare for former interim champion Gane, who is likely to provide the biggest test of Aspinall's 18-fight career to date.

Read more on BBC