| uniformitarian |
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noun - One who accepts uniformitarianism, or the uniformitarian doctrine.
adjective - Of, pertaining to, or designating, the view or doctrine that existing causes, acting in the same manner and with essentially the same intensity as at the present time, are sufficient to account for all geological changes.
| | | upheaval |
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noun - the process of being heaved upward, especially the raising of part of the earth's crust
- a sudden violent upset, disruption or convulsion
| | uplift |
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noun
- the act of being uplifted
- the result of being uplifted
- (geology) a tectonic upheaval, especially one that takes place in the process of mountain building
- a brassiere that raises the breasts
adjective
- lifted up
| | upthrust |
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noun
- an upward thrust
- (nautical) buoyancy
- (geology) an upward movement of part of the Earth's crust
verb to upthrust
- (transitive) to thrust something upwards
- (intransitive) to be thrust upwards
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