Definition of rift valley
:an elongated valley formed by the depression of a block of the earth's crust between two faults or groups of faults of approximately parallel orientation
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rift valley
noun
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First Known Use of rift valley
1894
RIFT VALLEY Defined for English Language Learners
rift valley
noun
Definition of rift valley for English Language Learners
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geology : a long, steep valley formed when two parallel rifts form in the Earth's crust and the land between them sinks
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Britannica.com: Encyclopedia article about rift valley
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