• WordNet 3.6
    • n bedrock principles from which other truths can be derived "first you must learn the fundamentals","let's get down to basics"
    • n bedrock solid unweathered rock lying beneath surface deposits of soil
    • ***
Century Dictionary and Cyclopedia
    • n bedrock In mining, the older crystalline and slaty rocks which underlie the unconsolidated gravelly and volcanic beds of Tertiary and Post-tertiary ages, along the flanks of the Sierra Nevada. The term is beginning to be used elsewhere to designate solid rock lying under loose detrital masses, such as sand and gravel.
    • n bedrock Hence That which underlies anything else, as a foundation; bottom layer; lowest stratum.
    • ***
Chambers's Twentieth Century Dictionary
    • Bedrock the solid rock underneath superficial formations
    • ***


Chambers's Twentieth Century Dictionary
A.S. bed; Ger. bett, Ice. bedr.


In literature:

The men shovelled all the gravel from the moss down to bedrock into the sluice box as it was all pay gravel.
"A Woman who went to Alaska" by May Kellogg Sullivan
He was watching the shadow cast by a shrub that sprang, shallow-rooted, from a crevice in the bedrock.
"Laramie Holds the Range" by Frank H. Spearman
Weakened as he was, his perception told him that the ship had buried itself deep in a swamp until it rested on bedrock.
"The Short Life" by Francis Donovan
It was there that the wall of water out of Dry Dollar had struck the track and scoured it to the bedrock.
"The Daughter of a Magnate" by Frank H. Spearman
Cut down to bedrock, he had laid himself open to that.
"The Pagan Madonna" by Harold MacGrath
Such a belief was indeed the bedrock of mediaeval political thought.
"Progress and History" by Various
I'll strip that beach down to bedrock if I have to work the toes an' fingers off 'em.
"A Man to His Mate" by J. Allan Dunn
The two set to work digging a shallow trench down to bedrock, rolling up loose boulders for a cairn.
"Rimrock Trail" by J. Allan Dunn
But we prefer to make fewer statements and have those of bedrock certainty.
"How to Analyze People on Sight" by Elsie Lincoln Benedict and Ralph Paine Benedict
The puny flame showed him a curving passage hewn smoothly through the heart of bedrock.
"Astounding Stories of Super-Science, December 1930" by Various
In it the bedrock of Slavic fatalism, an anarchistic pessimism is reached.
"Ivory Apes and Peacocks" by James Huneker
I have to-day come up against the bedrock of her integrity; it is terrible.
"A Diary Without Dates" by Enid Bagnold
But it's worked out; clear out to the bedrock.
"In the Brooding Wild" by Ridgwell Cullum
Everything from bedrock to loam that belonged to the Earth itself had disappeared.
"Freudian Slip" by Franklin Abel
The well of the tower plunged down a good five hundred feet to bedrock, widening as it went.
"Black Amazon of Mars" by Leigh Brackett
Soon they reached a depression from which the sand had been cleared, baring the white bedrock of the Empty Places.
"Think Yourself to Death" by C.H. Thames
Then comes bedrock, and under it a heavy clay deposit.
"Mountain" by Clement Wood
Great "potholes" have been formed by the stream where it rushes over the smoothly planed bedrock.
"Guide to Yosemite" by Ansel Hall
The bedrock of trouble had been fathomed.
"A Bottle in the Smoke" by Milne Rae
There we have the bedrock fact of the War, and no amount of boasting and bragging of German "victories" will alter it.
"The Way to Win" by William Le Queux

In poetry:

And there, by hydraulicking his ground beside a bedrock ditch,
With eye aflame and savage aim was Riley Dooleyvitch.
In long hip-boots and overalls, and dingy denim shirt,
Behind a giant monitor he pounded at the dirt.
"The Ballad Of Touch-The-Button Nell" by Robert W Service

In news:

We often refer to the bedrock beneath Detroit as the foundation for what has been built here.
Big Ben is bedrock of ' Rosetta Stone ' attack.
I do believe this season could be the best Bedrock 66 Live series ever.
Urban Creep inch by inch is encroaching on the scenic beauty which is the bedrock our hillside lifestyle.
Throughout the Cold War, both staunchly opposed communism, laying the bedrock for U.S.-Vatican cooperation.
More and more teenagers these days support a bedrock of American democracy, the First Amendment .
Bedrock Resources to operate plant next to co-gen power plant.
So in the same vein, I urge Bedrock LLC to get off their fucking asses and build something awesome here, or sell it to someone who will.
Some of the RFC protocols that Microsoft asserts that it may have IP rights over, such as the TCP/IP protocols and the DNS (Domain Name System), form the very bedrock of the Internets network infrastructure.
Urban Creep inch by inch is encroaching on the scenic beauty which is the bedrock our hillside lifestyle.
CISPA will unnecessarily undermine decades of bedrock privacy law.
7 subway extension was ramped up Thursday as the 100-hundred-ton drill that will slice through Manhattan's bedrock was brought to 11th Avenue.
"Building tunnels through bedrock deep under Manhattan is a dangerous enterprise," Donovan said.
As Greenland warms, water from melting glaciers flows to the sea, reducing the weight of ice and allowing underlying bedrock to rise.
WASHINGTON – There is good reason why President Obama's campaign refers to the African-American voting bloc as the "bedrock" of the president's support.

In science:

Signal events consist primarily of up-going muons produced in neutrino interactions in the bedrock of Antarctica or in the ice.
The ICECUBE prototype string in AMANDA
Equation (C.11) together with eq. (C.16) provide the bedrock of local inertial coordinates: Coordinates in which the metric reduces to its Minkowski form g(µν ) (0) = η(µν ) at a spacetime point P , while the first partial derivatives g(µν ),(α) vanish at P , are called local inertial coordinates.
Rotation in relativity and the propagation of light
This condition is hardly fulfilled at the windward foot of an isolated dune, e.g. a barchan (crescent shaped dune, discussed in Section VII), where the bed changes rapidly from bedrock to sand.
A Continuum Saltation Model for Sand Dunes
This was avoided by an ad hoc smoothing operation, which led to a numerically stable simulation by hiding the problem at the phase boundary (bedrock/sand).
A Continuum Saltation Model for Sand Dunes
For the calculation of the sand flux we assume bedrock up to the dune’s foot (xin=25m), where erosion is not possible (q=constant).
A Continuum Saltation Model for Sand Dunes
The sand flux over the bedrock is therefore equal to the influx at the boundary xin .
A Continuum Saltation Model for Sand Dunes
We emphasized the importance of a non– equilibrium flux relation for the correct modeling of phase boundaries, e.g. bedrock/sand, as they naturally occur for isolated dunes.
A Continuum Saltation Model for Sand Dunes
We take the ratio of signal amplitudes returned by reflection off of bedrock beneath shallow ice vs. deep ice to infer the attenuation length at intermediate depths (plotted horizontally, and shown on the RIGHT (b)), for several different data runs.
Recent Results from the RICE Experiment at the South Pole
Here, we use the relative ratios of “return” signal strengths from a transmitter, on a low-flying plane, broadcasting signals off the under-ice bedrock (i.e., comparing the ratio of signal strength of the bedrock echo at different locations) to extract λatten .
Recent Results from the RICE Experiment at the South Pole
The earliest wisdom about telescopes was thus that one needed a good solid pier (ideally with concrete anchored in bedrock!) to mount a telescope properly, and the lunar surface offers this opportunity.
Does the Lunar Surface Still Offer Value As a Site for Astronomical Observatories?
This theory promised to be an even deeper layer of bedrock in terms of which even the integers, including hierarchies of infinities, could be explained2 .
Set-Theoretic Preliminaries for Computer Scientists
All these carbonate speleothems are believed to be formed only from active CO2 from the air, because the bedrock of the cave consist of g ypsum and does not contain carbonates.
Luminescence of Speleothems in Italian Gypsum Caves: Preliminary Report
For instance, the saturation length controls the minimal size of crescent-shaped (barchan) dunes moving on top of bedrock, as well as the wavelength of the smallest dunes (the so-called “elementary dunes”) emerging on top of a sediment bed [17, 19].
Analytical model for flux saturation in sediment transport