Erratic blocks


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(Geol.) masses of stone which have been transported from their original resting places by the agency of water, ice, or other causes.

See also: Erratic

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
These elevated summits consist of rounded cones, between which the soil is bestrewn with erratic blocks of stone and gravelly bowlders.
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Other astronomers have seen in these inexplicable rays a kind of moraines, rows of erratic blocks, which had been thrown up at the period of Tycho's formation.
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Concept images reveal that the houses will have quirky shapes, based on 'erratic blocks in the green landscape.'
World's first 3D-printed HOUSING ESTATE is being built in the Netherlands - and it'll be ready by 2019; The estate will be made up of five houses, which will be carefully 3D-printed using concrete
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